Vanilla Buttermilk Sheet Cake

Name: Vanilla Buttermilk Sheet Cake
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Yield: 12 servings
Ingredients: 2 cups all-purpose flour; 1 ½ cups granulated sugar; ½ cup unsalted butter, softened; 1 cup buttermilk, at room temperature; 3 large eggs, at room temperature; 1 tablespoon vanilla extract; 2 teaspoons baking powder; 1 teaspoon baking soda; ½ teaspoon salt; 1 cup powdered sugar; 2 tablespoons milk; ½ teaspoon vanilla extract

Highlighted under: Modern Planning

I absolutely adore this Vanilla Buttermilk Sheet Cake! The moist, tender crumb and rich vanilla flavor make it an instant favorite at any gathering. The buttermilk lends a slight tanginess that perfectly balances the sweetness, creating a cake that everyone loves. I often whip this up for birthdays or casual get-togethers, and it never fails to impress. With simple ingredients and an easy preparation method, I always find myself coming back to this cake as my go-to dessert. It’s a true crowd-pleaser that shines in its simplicity.

Created by

Briar Kensington

Last updated on 2026-02-16T09:17:37.434Z

When I first tried making this cake, I was surprised by how effortlessly it came together. I combined the wet and dry ingredients in one bowl, and the buttermilk truly elevated the flavor and texture. It created a moist, fluffy crumb that I hadn't expected from such a simple cake!

One specific tip I learned was to let the cake cool in the pan for a few minutes before transferring it to a wire rack. This helps maintain its structure and ensures each slice comes out perfectly. Plus, serving it with a drizzle of vanilla glaze takes it to the next level!

Why You'll Love This Recipe

Moist and fluffy texture that's irresistible
Rich vanilla flavor that shines through every bite
Versatile for any occasion, from casual to fancy

Understanding the Ingredients

The combination of buttermilk and eggs in this Vanilla Buttermilk Sheet Cake is key to achieving its moist and tender crumb. Buttermilk adds both moisture and a slight tang that balances the sweetness of the cake. If you don't have buttermilk on hand, you can easily make a substitute by mixing one cup of milk with one tablespoon of vinegar or lemon juice. Let it sit for about five minutes before using it in the recipe.

Using room temperature ingredients is crucial for ensuring even mixing and a smooth batter. Cold butter and eggs can lead to a lumpy batter that may not rise properly during baking. Take the time to set your butter and eggs out about an hour before you start, or if you're in a hurry, you can place the eggs in warm water for about 10 minutes to speed up the process.

Baking Tips for Success

When baking the cake, keep an eye on it during the last few minutes of baking. Ovens can vary in temperature, and while the recipe suggests 30 minutes, your cake might be done a few minutes earlier or later. Look for golden edges and a toothpick that comes out clean or with just a few moist crumbs attached. Overbaking can lead to a dry cake, so it's better to check a bit early.

For the glaze, ensure that you thoroughly whisk the powdered sugar, milk, and vanilla until the mixture is completely smooth. If the glaze is too thick, add a splash more milk until it reaches your desired consistency. Conversely, if it's too thin, you can mix in a bit more powdered sugar. Drizzling the glaze over the cake while it’s still slightly warm helps it to adhere better.

Ingredients

For the Cake

2 cups all-purpose flour
1 ½ cups granulated sugar
½ cup unsalted butter, softened
1 cup buttermilk, at room temperature
3 large eggs, at room temperature
1 tablespoon vanilla extract
2 teaspoons baking powder
1 teaspoon baking soda
½ teaspoon salt

For the Vanilla Glaze

1 cup powdered sugar
2 tablespoons milk
½ teaspoon vanilla extract

Instructions

Directions

Preheat the Oven

Preheat your oven to 350°F (175°C). Grease and flour a 13x18-inch sheet pan.

Mix the Ingredients

In a large bowl, cream together the softened butter and granulated sugar until light and fluffy. Add the eggs, one at a time, beating well after each addition. Stir in the buttermilk and vanilla extract.

Combine Dry Ingredients

In another bowl, whisk together the flour, baking powder, baking soda, and salt.

Combine Mixtures

Gradually add the dry ingredients to the wet mixture, mixing until just combined. Do not overmix.

Bake the Cake

Pour the batter into the prepared sheet pan and spread it evenly. Bake in the preheated oven for 30 minutes or until a toothpick inserted into the center comes out clean.

Make the Glaze

While the cake is baking, whisk together the powdered sugar, milk, and vanilla extract until smooth.

Cool and Glaze the Cake

Allow the cake to cool in the pan for 10 minutes, then transfer it to a wire rack to cool completely. Drizzle the vanilla glaze over the cooled cake before slicing.

Enjoy!

Pro Tips

For extra flavor, consider adding lemon zest or almond extract to the batter. This cake also freezes beautifully, so you can make it ahead of time for special occasions.

Serving Suggestions

This Vanilla Buttermilk Sheet Cake is perfect for various occasions, whether it’s a casual family gathering or a more formal celebration. To elevate the presentation, consider serving it with a scoop of vanilla ice cream or a dollop of freshly whipped cream, which complements the vanilla flavor beautifully. Fresh berries or a fruit compote can also add a burst of color and flavor.

To make it even more festive, you can personalize each slice by topping it with sprinkles or edible flowers, making it a delightful treat for birthdays or celebrations. I love to serve it on a decorative platter for a beautiful touch when hosting.

Storing and Freezing

If you find yourself with leftover cake, you can store it in an airtight container at room temperature for up to three days. To keep the cake fresh, make sure it's completely cooled before you cover it. If you'd like to store it longer, the Vanilla Buttermilk Sheet Cake can be frozen for up to three months. Slice the cake and wrap each piece tightly in plastic wrap followed by aluminum foil before freezing.

When you're ready to enjoy the cake again, let it thaw in the refrigerator overnight. You can also feel free to reheat individual slices in the microwave for about 15-20 seconds for a cozy warm treat, just avoid overheating to maintain the texture.

Questions About Recipes

→ Can I use whole milk instead of buttermilk?

While you can use whole milk, buttermilk adds a unique tanginess and contributes to the cake's moisture. If you don't have buttermilk, you can substitute it by adding 1 tablespoon of vinegar or lemon juice to a cup of milk.

→ How should I store leftover cake?

Store the cake in an airtight container at room temperature for up to 3 days, or refrigerate it for up to a week. To freeze, wrap it tightly in plastic wrap and store in a freezer-safe container for up to 3 months.

→ Can I make this cake ahead of time?

Absolutely! This cake keeps well, and making it a day in advance can enhance the flavors. Just glaze it right before serving for best results.

→ Can I add mix-ins to the batter?

Yes! Feel free to fold in chocolate chips, nuts, or fresh berries to customize your cake. Just be sure to adjust baking time slightly if you're adding a lot.