INGREDIENTS
4 oz
Semisweet or Bittersweet Chocolate (chopped fine)
1/4 cup
Dutch-Processed Cocoa (sifted)
2 tbsp
Instant Espresso Powder
1/2 cup
Boiling Water
2 cups
Unbleached All-Purpose Flour, plus additional for dusting cake pans
3/4 tsp
Baking Soda
12 tbsp
Unsalted Butter (softened)
1 cup
Granulated Sugar
2/3 cup
(about 4¾ ounces) Packed Light Brown Sugar
3/4 tsp
Table Salt
4
Large Eggs (room temperature)
1 tsp
Vanilla Extract
3/4 cup
Sour Cream (room temperature)
5 sticks
(1-1/4 pound) Unsalted Butter (softened/room temperature)
5 cups
Confectioners’ Sugar (sifted)
1/2 tsp
Table Salt
4 tbsp
Instant Espresso Powder
1 tsp
Vanilla Extract
1 tsp
Coffee Extract
4 tbsp
Heavy Cream