INGREDIENTS
2 2/3 cups
all purpose flour
1 1/2 cups
sugar
1 tbsp
baking powder
4
egg whites
1 cup
whole milk
1 tbsp
vanilla
2/3 cup
salted butter, softened
1/3 cup
rainbow sprinkles
1/2 cup
butter, softened
1/2 cup
shortening
1 tsp
vanilla
4 cups
powdered sugar
4 tsp
milk
extra powdered sugar for dusting