INGREDIENTS
1 2/3 cups
all-purpose flour
1 cup
sugar
1/4 tsp
baking soda
1 tsp
baking powder
3/4 cup
unsalted butter (room temperature)
3
egg whites
3 tsp
vanilla extract
1/2 cup
plain yogurt (whole milk)
1/2 cup
whole milk
1/3 cup
sprinkles
1 cup
butter
5 cups
confectioners' sugar
1/4 cup
cream
3
drops blue food coloring
1
drop yellow food coloring
4
egg whites (room temperature)
1 1/2 cups
sugar (divided)
1/3 cup
water
1 pinch
salt
16 oz
unsalted butter (room temperature)
1 tsp
vanilla extract