The Ultimate Easy & Moist Vanilla Sheet Cake Recipe for Every Occasion

Imagine a dessert that’s consistently perfect, effortlessly delicious, and always a crowd-pleaser. Our **vanilla sheet cake** is precisely that! It’s my absolute favorite go-to for birthday parties, casual get-togethers, and those spontaneous moments that call for something sweet and comforting. Crafted with just 10 common ingredients, this recipe eliminates the stress of fussy layers or intricate piping. It’s the kind of dessert you can whip up in a snap, and it never fails to impress with its rich flavor and tender crumb. The true magic behind its incredible moisture and long-lasting freshness? A touch of sour cream, ensuring every bite is wonderfully moist and tender for days!

The Sour Cream Secret: Unlocking Unbeatable Moisture in Your Sheet Cake

Many home bakers often wonder what makes a cake genuinely moist and prevents it from drying out too quickly, especially in a **sheet cake recipe** format. For this **easy vanilla cake**, the answer lies in the addition of sour cream. Its naturally high-fat content and slightly acidic nature work wonders within the batter. The fat provides an undeniable richness and keeps the crumb luxuriously soft, while the acidity gently tenderizes the gluten in the flour. This dual action results in an exceptionally moist cake that maintains its freshness and delightful texture for an extended period. Sour cream is a true game-changer, ensuring that your vanilla sheet cake remains tender and delicious for days, making it perfect for preparing ahead of time or enjoying as delightful leftovers throughout the week. If you don’t have sour cream, plain Greek yogurt can be a suitable substitute, offering similar moistening benefits.

Achieving a Light & Fluffy Crumb: The Essential Role of Egg Whites

Those carefully separated egg whites aren’t merely an afterthought in this **homemade vanilla cake**; they are a strategic and essential addition that profoundly transforms the cake’s texture. When gently incorporated into the batter, whipped egg whites contribute crucial structure and a beautiful, airy lift without adding the richness or density that egg yolks would. This careful process helps the **vanilla sheet cake** rise higher and develop an incredibly delicate, light, and airy crumb that practically melts in your mouth, rather than feeling heavy or overly dense. The key to harnessing this magic is to fold them into the batter with extreme care and gentleness, preserving as much of that precious air as possible. This ensures you achieve a truly light, fluffy, and tender result every single time.

4.73 from 11 votes

Vanilla Sheet Cake Recipe

This vanilla sheet cake is your ultimate go-to cake for any party or gathering. It’s incredibly simple to prepare with just 10 essential ingredients and delivers an absolutely delicious, moist, and fluffy cake every time, topped with a luscious vanilla buttercream.

Prep Time:

15 minutes

Cook Time:

20 minutes

Total Time:

35 minutes

Servings:

15 slices

Print Recipe
Rate This Recipe

Ingredients

For the Vanilla Sheet Cake

• 1 cup milk
• 2 large egg whites
• 2 large eggs
• 1 cup unsalted butter, melted (2 sticks)
• ¼ cup sour cream (or plain Greek yogurt)
• 1 tablespoon pure vanilla extract
• 2½ cups all-purpose flour
• 2 cups granulated sugar
• 1 teaspoon baking powder
• ½ teaspoon baking soda

For the Classic Vanilla Buttercream Frosting

• 1 cup unsalted butter, room temperature (2 sticks)
• 1 teaspoon pure vanilla extract
• 4 cups powdered sugar
• Rainbow sprinkles, optional, for garnish

Equipment Needed

• Kitchen Scale (optional, for precise flour measurement)
• XL Baking Sheet (12×17 inches)
• Hand Mixer (or stand mixer with paddle attachment)
• Parchment Paper
• Nonstick Cooking Spray
• Large Mixing Bowls
• Whisk
• Rubber or Offset Spatula

Instructions for the Vanilla Sheet Cake

1. Preheat your oven to 350°F (175°C). Line a 12×17-inch XL baking sheet with parchment paper, allowing it to overhang slightly for easy removal. Lightly spray the exposed sides of the pan with nonstick cooking spray.
   
2. In a medium-sized bowl, combine the wet ingredients for the cake: milk, egg whites, whole eggs, melted unsalted butter, sour cream, and pure vanilla extract. Whisk them together thoroughly until well combined and smooth.
3. In a separate large mixing bowl, whisk together the dry ingredients: all-purpose flour, granulated sugar, baking powder, and baking soda. Ensure they are evenly distributed to help the cake rise properly.
4. Pour the combined wet ingredients into the bowl with the dry ingredients. Stir gently using a spatula or spoon, just until the mixture is combined and no streaks of dry flour remain. Be careful not to overmix, as this can lead to a dense, tough cake.
   
5. Carefully pour the cake batter into the prepared baking pan and use a rubber spatula to spread the batter evenly across the entire surface of the pan, ensuring a consistent thickness for even baking.
6. Bake the cake in the preheated oven for 15-20 minutes. To check for doneness, insert a toothpick into the center of the cake; if it comes out clean or with a few moist crumbs attached, the cake is ready. Avoid overbaking.
   
7. While the cake is cooling, prepare the vanilla buttercream frosting. Using a hand mixer (or stand mixer with a paddle attachment), beat the room-temperature unsalted butter on medium-high speed until it becomes very light, pale, and fluffy (3-5 minutes). Add the pure vanilla extract and mix again until fully incorporated.
   
8. Gradually add the powdered sugar to the butter mixture, one cup at a time, beating well after each addition until smooth and creamy. If the frosting seems too thick, you can add a tiny splash of milk (about ½-1 teaspoon at a time) until desired consistency is reached.
   
9. Allow the cake to cool completely to room temperature before frosting. This is crucial to prevent the buttercream from melting. Once cooled, spread the vanilla buttercream evenly over the top of the cake using a rubber or offset spatula.
10. If desired, immediately sprinkle rainbow sprinkles generously over the frosted cake before the buttercream sets. This adds a festive touch. Then, slice the cake into squares and serve this delightful homemade treat.
    

Expert Tips for Your Best Vanilla Sheet Cake

• Measure Flour Correctly: For the lightest, fluffiest cake, measure your all-purpose flour using the spoon-and-level method. Spoon flour into your measuring cup and then level it off with a straight edge (like a knife). This prevents over-packing the flour, which can lead to a dense, dry cake.
• Don’t Overmix: Mix the cake batter and frosting just until the ingredients are combined. Overmixing develops the gluten in the flour too much, which can result in a rubbery or tough cake texture.
• Room Temperature Ingredients are Key: Ensure all cold ingredients like milk, eggs, and sour cream are at room temperature. This helps them emulsify better with the melted butter, creating a smoother, more uniform batter and a finer, more tender crumb in the finished cake.
• Adjusting Pan Sizes:
  • To bake this recipe in a standard 9×13-inch baking pan, simply halve all the ingredient quantities.
  • If you prefer 8-inch round cake pans, you’ll need approximately four pans for the full recipe. Alternatively, you can divide the batter evenly among two pans, but be prepared for a longer baking time, closer to 30-35 minutes, or until a toothpick inserted into the center comes out clean.
• Cool Completely Before Frosting: Patience is paramount here! The cake must be entirely cooled to room temperature before you even think about applying the buttercream. Frosting a warm cake will cause the delicate buttercream to melt, slide off, and create an unappealing mess.
• Get Creative with Garnish: While classic rainbow sprinkles are always a hit, feel free to customize your **homemade vanilla sheet cake** with other delightful toppings. Consider fresh berries and mint for a summer treat, toasted coconut flakes for a tropical vibe, or festive candy and themed decor for holidays. The sky’s the limit when it comes to customizing the visual appeal of this versatile sheet cake!
• Check Your Oven Temperature: Oven temperatures can vary significantly. Using an oven thermometer can ensure your oven is accurately heated to 350°F (175°C), which is crucial for optimal baking results and preventing issues like uneven baking or dryness.

Storage Recommendations:

• Store any leftover **vanilla sheet cake** in an airtight container at room temperature for up to 2 days to maintain its exquisite moisture and flavor.
• Alternatively, you can refrigerate the cake in an airtight container for up to 4 days. Bringing it to room temperature before serving will enhance its flavor and texture.
• Freezing Instructions: For longer storage, wrap individual slices tightly in plastic wrap, then place them in a freezer-safe bag or container. This will keep the cake fresh in the freezer for up to 3 months. When ready to enjoy, simply let the slices thaw overnight in the refrigerator before serving.

Nutrition Facts

Vanilla Sheet Cake Recipe

Amount Per Serving (1 slice)

Calories 553
Calories from Fat 243

% Daily Value*

Fat 27g42%

Saturated Fat 16g100%

Trans Fat 1g

Polyunsaturated Fat 1g

Monounsaturated Fat 7g

Cholesterol 94mg31%

Sodium 94mg4%

Potassium 78mg2%

Carbohydrates 76g25%

Fiber 1g4%

Sugar 59g66%

Protein 4g8%

Vitamin A 843IU17%

Vitamin C 0.03mg0%

Calcium 55mg6%

Iron 1mg6%

* Percent Daily Values are based on a 2000 calorie diet. Nutritional information does not include optional ingredients.

Author:
Becky Hardin

Did You Make This?
We love seeing what you’ve made! Tag us on social media at
@easydessertrecipes for a chance to be featured.

Baking the Perfect Vanilla Sheet Cake: A Detailed Step-by-Step Guide

Follow these comprehensive steps to ensure your **homemade vanilla sheet cake** turns out perfectly moist, fluffy, and utterly delicious every single time. Precision and patience are your best friends in baking, and this detailed guide will walk you through each stage for optimal results.

Step 1: Prepare Your Workspace and Preheat the Oven Accurately

Before you begin the exciting journey of baking, take a moment for “mise en place”—gather all your ingredients (ensure milk, eggs, and sour cream are at room temperature!) and equipment. This foundational step makes the entire baking process smoother and more enjoyable, preventing last-minute rushes. Preheat your oven to a precise 350°F (175°C). Lining a 12×17-inch XL baking sheet with parchment paper is crucial; ensure the paper extends slightly over the edges to create a convenient sling for easy removal of the cooled cake. Lightly spray any exposed sides of the baking sheet with nonstick cooking spray to guarantee nothing sticks. Don’t forget to melt the butter required for the cake in advance and allow the butter designated for the frosting to soften to a perfect room temperature – it should be pliable but not greasy.

Step 2: Masterfully Combine Wet and Dry Ingredients for Optimal Batter

In a medium-sized bowl, carefully combine all your wet ingredients: 1 cup of full-fat milk, 2 large egg whites (key for that airy texture), 2 large whole eggs, 1 cup of smoothly melted unsalted butter, ¼ cup of our secret ingredient, sour cream, and 1 tablespoon of fragrant pure vanilla extract. Whisk these together thoroughly until they are completely blended and appear smooth. In a separate, larger mixing bowl, whisk together the dry components: 2½ cups of all-purpose flour (remember to spoon and level to avoid a dense cake!), 2 cups of granulated sugar, 1 teaspoon of baking powder, and ½ teaspoon of baking soda. This dry mixture ensures all leavening agents are perfectly distributed for a consistent and even rise. Now, it’s time to gently combine: pour the wet mixture directly into the bowl containing the dry ingredients. Using a spatula or wooden spoon, stir carefully just until the mixture is combined and no streaks of dry flour remain. A crucial tip to remember: avoid overmixing the batter at all costs! Overmixing develops the gluten in the flour too much, which can lead to a tough, rubbery, and less tender cake texture.

Step 3: Bake Your Vanilla Masterpiece to Golden, Fluffy Perfection

Once your batter is perfectly mixed to a smooth consistency, carefully pour it into the prepared baking pan. Utilize your rubber or offset spatula to gently spread the batter evenly across the entire surface. This meticulous step is important for ensuring uniform baking and a consistent cake thickness, which in turn guarantees that every slice is equally delicious. Transfer the pan to your preheated oven and bake for approximately 15-20 minutes. Keep in mind that baking times can vary slightly depending on your specific oven’s calibration and hot spots, so it’s wise to start checking for doneness at the earlier end of the suggested time. The ultimate, reliable test for doneness is to insert a clean toothpick into the very center of the cake. If it comes out clean or with only a few moist crumbs attached, your cake is perfectly baked and ready to be removed. Be diligent not to overbake, as this is the quickest way to dry out your otherwise wonderfully **moist vanilla cake**.

Step 4: Whip Up the Silky Smooth Vanilla Buttercream Frosting

While your **homemade vanilla cake** is cooling, it’s the perfect time to prepare the luscious vanilla buttercream frosting. In a large mixing bowl, using a hand mixer (or a stand mixer fitted with the paddle attachment), begin by beating 1 cup of unsalted butter that has been softened to a true room temperature. Beat it on medium-high speed for a good 3-5 minutes until it transforms into a very light, noticeably pale, and incredibly fluffy consistency. This aeration process is key for achieving light and airy buttercream. Next, add 1 teaspoon of pure vanilla extract and continue mixing until the vanilla is fully incorporated, infusing the butter with its rich, aromatic flavor. Gradually add the powdered sugar, one cup at a time, beating thoroughly after each addition until the frosting becomes smooth, creamy, and easily spreadable. If the frosting feels too thick to work with, you can add a tiny amount of milk or cream (start with ½ teaspoon, adding more if needed) until you reach your desired consistency. Conversely, if it’s too thin, a bit more powdered sugar will help thicken it up.

Step 5: Frost and Garnish Your Delightful Creation for Presentation

This final step requires a touch of patience, but it’s absolutely essential for a beautiful finish! Your **vanilla sheet cake** must be entirely cooled to room temperature before you attempt to frost it. Attempting to frost a warm cake will inevitably lead to a melted, runny buttercream mess that slides right off. Once the cake is completely cool, use a rubber or offset spatula to evenly spread the creamy vanilla buttercream over the entire top surface of the cake. For a neat and appealing finish, you can use the spatula to create artistic swirls, or simply aim for a smooth, consistent layer. If you plan on using rainbow sprinkles or any other festive garnish, sprinkle them immediately after frosting, before the buttercream has a chance to set too much. This ensures they adhere nicely to the soft frosting. Finally, slice your beautiful **easy vanilla cake** into desired squares and prepare to indulge in its comforting, sweet, and perfectly frosted flavor.

Frequently Asked Questions About Baking the Perfect Vanilla Sheet Cake

Q: Can I use buttermilk instead of sour cream in this recipe?

While sour cream is highly recommended for its unique richness and unparalleled moistening properties, you can certainly substitute it with buttermilk. If you don’t have buttermilk readily available, you can easily make your own by adding 1 tablespoon of fresh lemon juice or white vinegar to a regular cup of milk and letting it sit for 5-10 minutes until it slightly curdles. Keep in mind that using buttermilk might yield a cake with a slightly different texture than sour cream, perhaps a touch tangier, but it will still contribute beautifully to a tender and moist crumb.

Q: How do I prevent my vanilla sheet cake from drying out?

Several factors typically contribute to a dry cake, but they are all easily preventable. Firstly, ensure you’re measuring your flour correctly using the spoon-and-level method to avoid over-packing. Secondly, be vigilant against overbaking by checking for doneness with a toothpick at the earlier end of the suggested bake time. Every oven is different! Thirdly, the sour cream in this recipe is a fantastic natural moistener, so don’t skip it. Lastly, proper storage is crucial: storing the cooled cake promptly in an airtight container will significantly extend its freshness and moisture, whether at room temperature or in the refrigerator.

Q: What if my vanilla buttercream is too thin or too thick?

Buttercream consistency is quite forgiving and easy to adjust! If your frosting turns out too thin and runny, simply gradually add more powdered sugar, one tablespoon at a time, beating thoroughly after each addition until it reaches your desired thick, spreadable consistency. Conversely, if it’s too thick and stiff, add a tiny splash of milk or cream (start with just ½ teaspoon) until it becomes wonderfully smooth and perfectly spreadable. Always adjust slowly to avoid overcorrecting and ensure a perfect outcome.

Q: Can I make this easy vanilla cake ahead of time for an event?

Absolutely! This **moist vanilla cake** is an excellent candidate for making in advance, which is perfect for busy schedules. You can bake the cake itself a day or two before your event. Once completely cooled, wrap it tightly in plastic wrap (or place it in an airtight container) and store it unfrosted at room temperature. You can also prepare the buttercream frosting a day ahead and store it in an airtight container in the refrigerator (just be sure to bring it to room temperature and re-whip it with your mixer for a few minutes until fluffy again before frosting). Frost the cake right before serving for the freshest and most appealing look.

Creative Variations and Customization Ideas for Your Vanilla Sheet Cake

One of the true joys of a classic **vanilla sheet cake** is its incredible versatility. While undeniably delicious on its own, it also serves as a perfect blank canvas for your culinary creativity and personal touch. Here are a few inspiring ideas to elevate your homemade creation:

• Zesty Citrus Infusion: Add the finely grated zest of one lemon, orange, or lime to the cake batter for a subtle, bright, and fragrant flavor that beautifully complements the vanilla.
• Nutty Almond Twist: Substitute half of the pure vanilla extract with almond extract for a delicate, sophisticated, and slightly nutty flavor profile that’s surprisingly delightful.
• Chocolate Chip Delight: For a universally loved treat, gently fold in a cup of mini chocolate chips (or regular-sized chips) into the batter just before pouring it into the pan.
• Fruit Swirl Surprise: After pouring half the batter into the prepared pan, dollop spoonfuls of your favorite fruit preserves (raspberry, strawberry, or cherry work wonderfully) and gently swirl them into the batter with a knife before adding the remaining batter and baking.
• Coffee Cake Style: Transform your sheet cake into a delightful coffee cake by sprinkling a generous layer of cinnamon-sugar streusel topping over the batter just before baking.
• Alternative Frostings: While classic vanilla buttercream is fantastic, feel free to experiment with other frosting flavors. Try a rich chocolate buttercream, a tangy cream cheese frosting, or even a light and airy whipped cream frosting for different occasions.
• Seasonal Decorations: Beyond colorful sprinkles, adapt your decorations to the season or specific occasion. Think fresh berries and mint for a vibrant summer look, toasted coconut flakes for a tropical or spring theme, or festive candies and edible glitter for holidays.

Effortless Serving Suggestions for Your Vanilla Sheet Cake

This **easy vanilla cake** is incredibly satisfying on its own, but its versatile flavor profile also means it pairs wonderfully with a variety of accompaniments, enhancing the overall dessert experience:

• Fresh Berries: A vibrant side of fresh strawberries, raspberries, or blueberries adds a lovely tart contrast and a burst of juicy freshness.
• Ice Cream Pairing: Elevate your dessert by serving a scoop of premium vanilla bean or strawberry ice cream alongside a slice for an indulgent and classic combination.
• Fruit Coulis Drizzle: For an elegant touch, drizzle a homemade fruit coulis (such as raspberry, passion fruit, or mango) over each slice before serving.
• Warm Beverage Companion: It’s the quintessential treat to enjoy with a warm cup of freshly brewed coffee, a comforting mug of tea, or even a glass of cold milk.
• Perfect Potluck Favorite: Given its simple nature and generous serving size, this sheet cake is an ideal dessert for potlucks, picnics, and large gatherings where easy portioning and universal appeal are definite advantages.