INGREDIENTS
2
Eggs, large
1 cup
All-purpose flour
1/2 tsp
Baking powder
8 oz
Bittersweet chocolate
1/2 cup
Cocoa, unsweetened Dutch-process
1/2 tsp
Salt
1 1/2 cups
Sugar
1 tsp
Vanilla extract, pure
1 tbsp
Espresso, instant powder
1/2 cup
Butter, unsalted