INGREDIENTS
2 tsp
baking powder
1/2 cup
buttermilk
1 1/2 cups
confectioners' sugar
1 large
egg
1 cup
flour
3/4 cup
granulated sugar
1 pinch
salt
1/3 cup
sour cream
1/2 cup
sprinkles
1/2 cup
unsalted butter
2 tsp
vanilla extract
1/4 cup
vegetable oil