Name: Celebration Smash Cake
Cook time: P0Y0M0DT1H0M0.000S
Total time: P0Y0M0DT2H0M0.000S
Yield: 12 servings
Ingredients: 1 1/2 cups (3 sticks) unsalted butter, softened, plus more for greasing the pans; 3 3/4 cups cake flour, plus more for flouring the pans; 1 tablespoon baking powder; 1/2 teaspoon baking soda; 1 teaspoon kosher salt; 2 cups granulated sugar; 6 large egg whites; 1/2 cup sour cream; 1 tablespoon vanilla extract; 1 cup whole milk; 3/4 cup favorite confetti sprinkles; 2 cups (4 sticks) unsalted butter, softened; 8 to 10 cups powdered sugar; 3 to 4 tablespoons heavy cream; 2 tablespoons vanilla extract; 2 teaspoons kosher salt; Blue food coloring, optional; Large multicolor confetti sprinkles, optional (see Cook's Note); Blue sprinkles, optional

Directions

Special equipment:

2 6-inch cake pans, 3 8-inch cake pans

For the cake: Grease and flour 2 6-inch cake pans and 3 8-inch cake pans. Preheat the oven to 350 degrees F. Stir together the flour, baking powder, baking soda and salt in a large bowl.
Beat the butter and granulated sugar together on medium speed with an electric mixer until creamy. Beat in the egg whites until fluffy. Add the sour cream and vanilla and beat until smooth. Add the flour mixture alternately with the milk in three additions, beginning and ending with the flour mixture. Fold in the sprinkles.
Spoon the batter into the prepared pans. Bake the 6-inch pans for until a toothpick inserted in the center comes out clean, 18 to 20 minutes. Bake the 8-inch pans until a toothpick inserted in the center comes out clean, 20 to 22 minutes. Remove the cakes to wire racks to cool in the pans 5 minutes. Turn out onto wire racks to cool completely.
For the vanilla buttercream: Beat the butter at medium speed with an electric mixer until creamy. Add the powdered sugar, 1 cup at a time, until combined. Add the cream, vanilla and salt and beat to a spreadable consistency. Tint some of the frosting with blue food coloring, if desired.
Build the cake: Stack the 8-inch cakes with frosting spread between the layers. Stack the 6-inch cakes on top of the 8-inch ones and spread frosting between the layers. Frost the top and side of the cake. Decorate with confetti and/or blue sprinkles, if desired.

Cook’s Note

Find the large confetti sprinkles at craft stores and online.

Celebration Smash Cake

Ingredients

Cakes:

Vanilla Buttercream:

Directions

Special equipment:

Cook’s Note

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