Just Enough Funfetti Cake

Preheat oven to 350°F. Grease and line a 6-inch round cake pan with parchment paper.

Beat butter until fluffy, then add sugar and beat until pale. Mix in eggs one at a time, then vanilla.

Whisk together flour, salt, and baking powder. Alternate adding the dry ingredients and buttermilk, beginning and ending with the dry ingredients. Fold in the rainbow sprinkles.

Pour batter into the prepared pan and bake for 35–40 minutes, or until a toothpick comes out clean. Cool completely.

Beat butter and powdered sugar until fluffy. Mix in vanilla, salt, and enough heavy cream to make a smooth buttercream. Frost the cooled cake and finish with extra sprinkles.