INGREDIENTS
2
Egg whites
1 2/3 cups
All-purpose flour
1/2 tsp
Baking powder
1/4 tsp
Baking soda
1/3 cup
Cocoa powder
1 cup
Granulated sugar
2 1/2 cups
Powdered sugar
1/2 tsp
Salt
2 2/3 tbsp
Vanilla
1/2 cup
Butter, unsalted
1/2 cup
Butter
1/4 cup
Greek yogurt, plain
3 tbsp
Heavy cream
3/4 cup
Milk