IngredientsCake
- 3 cups (420 g) all-purpose flour
- 2 teaspoons baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 and 1/2 cups (3 sticks/340 g) unsalted butter, softened to room temperature
- 1 and 3/4 cups (350 g) granulated sugar
- 5 large eggs
- 1 tablespoon pure vanilla extract
- 1 and 1/2 cups (360 ml) buttermilk
- 3/4 cup sprinkles
Vanilla Buttercream Frosting
- 1 and 1/2 cups (3 sticks/340 g) unsalted butter, softened to room temperature
- 1/8 teaspoon salt
- 5-6 cups (600-700 g) powdered sugar, sifted
- 5 tablespoons (75 ml) heavy cream
- 1 tablespoon pure vanilla extract
Instructions
- Preheat oven to 350°F/180 °C. Butter three 9-inch cake pans that are at least 2-inch high, and line the bottoms with parchment paper.
- In a medium bowl, sift together flour, baking powder, baking soda, and salt. Set aside.
- In the bowl of an electric mixer fitted with the paddle attachment, beat butter and sugar on medium speed until light and fluffy, 3-4 minutes. Scrape down the sides and bottom of the bowl as needed. Add eggs, one at a time, beating well after each addition. Beat in vanilla extract. With the mixer on low speed, add the flour mixture in three additions alternating with the buttermilk in two additions, beginning and ending with the flour mixture. Do not overmix this batter. The less you mix, the lighter the cake will be. Fold in sprinkles.
- Divide batter evenly between prepared pans. Bake for 25-30 minutes until a toothpick inserted into the center of the cakes comes out clean. Allow cakes to cool for 15 minutes, then gently remove from pan and allow them to cool completely on a wire rack.
- Frosting: In the bowl of an electric mixer fitted with the paddle attachment, beat butter and salt on medium speed until smooth and creamy, about 2 minutes. Add 5 cups powdered sugar, heavy cream, and vanilla. Beat on low speed for 30 seconds, then increase speed to high and beat for 2 minutes. Beat in more powdered sugar if frosting is too thin.
- Assembly: If the cakes rose too much, cut their rounded top with a knife to make them flat. Set one cake layer on a plate or cake stand. Evenly spread a thick layer of the frosting over the cake to the edge. Top with the second cake layer and spread a thick layer of the frosting. Finish with the third cake layer. Spread frosting over the top and sides of the cake. Cake should be kept in the fridge, but bring it to room temperature before serving.
Side Note:
The sprinkles and colors of the buttercream can be the school colors.
You can do a design like I did on the top showing the logo of the school.
Or you can just make a funfetti cake for fun!