INGREDIENTS
2 1/4 cups
all-purpose flour
2 1/4 tsp
baking powder
3/4 tsp
salt
3/4 cup
unsalted butter (room temperature)
1 1/2 cups
granulated sugar
3
large eggs (room temperature)
1 1/2 tsp
vanilla
1 cup
buttermilk (or whole milk, room temperature)
6
large egg whites
1 1/2 cups
granulated sugar
2 cups
unsalted butter (room temperature)
2 tsp
vanilla
confetti sprinkles
nonpareils