INGREDIENTS
3
Eggs, large
1 cup
All-purpose flour
1 tsp
Baking powder
3/4 tsp
Baking soda
1/4 cup
Brown sugar, packed light or dark
1 1/2 cups
Cocoa powder, unsweetened
1 tbsp
Cornstarch
1 cup
Granulated sugar
2 1/2 cups
Powdered sugar
1/2 tsp
Salt
3 tsp
Vanilla
1/2 cup
Vegetable oil
3/4 cup
Butter, unsalted
2/3 cup
Buttermilk
3 tbsp
Sour cream
1/3 cup
Whipping cream