Ingredients:
- 3 cups (360g) all-purpose flour
- 2 ½ cups (500g) granulated sugar
- 1 ½ cups (360ml) whole milk, room temperature
- 1 cup (230g) unsalted butter, softened
- 4 large eggs, room temperature
- 1 tablespoon (15g) baking powder
- 1 teaspoon (5g) vanilla extract
- ½ teaspoon (2.5g) salt
- Food coloring (pink and blue)
- 1 cup (230g) unsalted butter, softened (for frosting)
- 4 cups (480g) powdered sugar, sifted
- ¼ cup (60ml) whole milk (for frosting)
- 1 teaspoon (5g) vanilla extract (for frosting)
- Pink or blue gel food coloring (for frosting)
Instructions:
- Preheat the oven to 350°F (175°C).
- Grease the cake pans and line the bottom with parchment paper.
- In a bowl, whisk together flour, baking powder, and salt.
- In a large mixing bowl, beat the softened butter and sugar until light and fluffy.
- Mix in the eggs, one at a time, and then add the vanilla extract.
- Gradually add the dry ingredients and milk to the creamed mixture, alternating between the two.
- Divide the batter into two bowls and color one bowl pink and the other blue using food coloring.
- Pour each colored batter into its own prepared pan and bake for 30 minutes or until a toothpick inserted comes out clean.
- Let the cakes cool in the pans for 10 minutes, then turn them out onto wire racks to cool completely.
- Beat the butter for the frosting until creamy, gradually add powdered sugar, milk, and vanilla, and beat until smooth.
- Place one blue layer on the serving platter and spread frosting on top. Add the pink layer next and frost. Repeat with the remaining layer.
- Fill the center of the cake with the remaining pink or blue frosting for a surprise effect when sliced.