INGREDIENTS
Unsalted butter, for pans
1 1/2 cups
unsweetened cocoa powder, plus more for pans
3 cups
unbleached all-purpose flour
3 cups
sugar
1 tbsp
baking soda
1 1/2 tsp
baking powder
1 1/2 tsp
kosher salt
3
large eggs
1 1/2 cups
buttermilk
3/4 cup
vegetable oil
1 1/2 tsp
pure vanilla extract
1 lb
unsalted butter, room temperature
1 1/2 cups
sugar
6
egg whites
1 tsp
pure vanilla extract
Gumdrops, for decorating