Blue and White Sheet Cake
Ingredients
- 2.5 cups all-purpose flour
- 2.5 tsp baking powder
- 0.5 tsp salt
- 1 cup unsalted butter softened
- 1.75 cups granulated sugar
- 4 large eggs
- 1 tbsp vanilla extract
- 1 cup whole milk
- 4 cups vanilla buttercream store-bought or homemade
- Blue and white gel food coloring
- Blue and white sprinkles for topping
Instructions
- Preheat oven to 350°F, grease a 9x13 inch baking pan.
- Whisk flour, baking powder and salt in a bowl, set aside.
- Beat butter and sugar together 3 minutes until pale and fluffy.
- Add eggs one at a time, beating well after each, then mix in the vanilla.
- Alternate adding the flour mixture and milk in three additions, mixing just until smooth.
- Pour batter into the pan, smooth the top, bake 28 to 32 minutes until a toothpick comes out clean.
- Cool the cake in the pan on a rack 20 minutes, then to room temperature.
- Split the buttercream into two bowls, tint one deep blue and leave one white.
- Spread the white buttercream over the cake, then pipe or swirl the blue buttercream in stripes across the top.
- Scatter blue and white sprinkles over the wet frosting before it sets.
Good to Know
Bake the layer a day ahead, wrap it tightly once cool, and frost the next day so the crumb does not tear under the knife.