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+ servings
vanilla smash cake with buttercream

Vanilla Smash Cake for a First Birthday

This tender vanilla smash cake is small enough for a first birthday and easy to decorate with creamy buttercream.
Prep : 10 Total : 25 minutes

Ingredients
  

Ingredients

  • 3/4 cup cake flour sifted
  • 1 teaspoon baking powder
  • 1/4 teaspoon salt
  • 1/4 cup unsalted butter room temperature
  • 1/2 cup granulated sugar
  • 1 large egg room temperature
  • 2 tablespoons sour cream room temperature
  • 1 teaspoon vanilla extract
  • 1/3 cup whole milk room temperature
  • 1/2 cup unsalted butter room temperature, for frosting
  • 1 1/2 cups powdered sugar
  • 1 teaspoon vanilla extract for frosting
  • 1 tablespoon whole milk or heavy cream room temperature
  • 1 pinch salt to taste

Instructions
 

Instructions

  • Heat the oven to 350°F. Grease three 4-inch pans or one 6-inch pan and line the bottoms with parchment.
  • Cream butter and sugar until light and fluffy. Add the egg, then vanilla and sour cream, mixing until smooth.
  • Mix in the flour, baking powder, and salt, then add the milk and stir just until combined.
  • Bake 4-inch cakes for 18 to 22 minutes or a 6-inch cake for 24 to 28 minutes, until the cake springs back and a toothpick is clean. Cool completely.
  • Beat the frosting butter until pale. Add powdered sugar, vanilla, milk, and salt; mix until smooth.
  • Level and stack cooled layers with frosting, crumb coat, chill 30 minutes, then decorate with the remaining frosting.

Notes

Use a 6-inch pan for one taller cake or three 4-inch pans for layers.