Old-Fashioned White Sheet Cake

Old-Fashioned White Sheet Cake

Fluffy, creamy, and straight from grandma’s kitchen—this Old-Fashioned White Sheet Cake is a timeless dessert that never goes out of style. Whether you’re baking for a birthday, potluck, holiday, or just because, this classic cake brings everyone to the table with its tender crumb and dreamy white frosting. It’s simple, elegant, and full of sweet nostalgia in every bite.

Ingredients:

For the Cake:

• 2 ¼ cups all-purpose flour

• 1 tablespoon baking powder

• ½ teaspoon salt

• 1 cup unsalted butter, softened

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• 1 ¾ cups granulated sugar

• 4 egg whites

• 1 tablespoon vanilla extract

• 1 cup whole milk

• ½ cup sour cream (for extra moisture)

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For the Frosting:

• 1 cup unsalted butter, softened

• 4 cups powdered sugar

• 2–3 tablespoons heavy cream or milk

• 2 teaspoons vanilla extract

• Pinch of salt

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Instructions:

1. Preheat and Prep: Preheat oven to 350°F (175°C). Grease and lightly flour a 9×13-inch sheet pan or line with parchment paper.

2. Make the Cake Batter: In a bowl, whisk together flour, baking powder, and salt. In a separate large mixing bowl, cream the butter and sugar until light and fluffy (about 3 minutes). Add egg whites one at a time, beating well after each. Stir in vanilla extract.

3. Combine Wet and Dry: Add the dry ingredients to the butter mixture in three parts, alternating with the milk and sour cream. Mix just until combined—do not overmix.

4. Bake to Perfection: Pour batter into the prepared pan and smooth the top. Bake for 30–35 minutes or until a toothpick inserted in the center comes out clean. Let cake cool completely in the pan.

5. Prepare the Frosting: In a large bowl, beat the softened butter until creamy. Gradually add powdered sugar, mixing on low speed. Add vanilla, salt, and cream (1 tablespoon at a time) until desired consistency is reached—smooth, fluffy, and spreadable.

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6. Frost the Cake: Once the cake has fully cooled, generously frost the top using a spatula to create soft, rustic swirls.

Final Thoughts:

This cake is a blank canvas—perfect as-is, but also ready to be dressed up with sprinkles, coconut, fruit, or even a flavored filling. It’s light, elegant, and made for making memories. Slice it up and serve with love—because some desserts are more than just sweet, they’re a celebration of tradition.