INGREDIENTS
4
Eggs, large
3 1/2 cups
All-purpose flour
2 tsp
Baking powder
1 1/2 tsp
Baking soda
2 tbsp
Cornstarch
3 1/4 tsp
Kosher salt
6 cups
Powdered sugar
1/2 cup
Rainbow sprinkles
2 cups
Sugar
1 2/3 tbsp
Vanilla
3 cups
Butter, unsalted
2 cups
Buttermilk
1/4 cup
Milk