INGREDIENTS
3/4 cup
unsalted butter
1 1/2 cups
unsweetened cocoa powder
2 cups
flour
1 1/2 cups
granulated sugar
1/2 cup
light brown sugar
2 tsp
baking soda
1 tsp
baking powder
1 tsp
kosher salt
4 larges
eggs
1 cup
sour cream
1 tbsp
instant espresso
1 1/4 cups
unsalted butter
3 cups
confectioners' sugar
2/3 cup
unsweetened cocoa powder
3 tbsp
heavy cream
1 tsp
vanilla extract
1/2 tsp
kosher salt
1 1/4 tsp
salt