INGREDIENTS
2 cups
all-purpose flour
1/2 cup
Dutch-processed cocoa powder
2 tsp
baking powder
1/2 tsp
salt
16 oz
semisweet chocolate, chopped (or chocolate chips)
4
large eggs
2 tsp
pure vanilla extract
2 tsp
instant coffee or espresso powder
10 tbsp
unsalted butter, at room temperature
1 1/2 cups
packed light brown sugar
1/2 cup
white sugar
1 cup
semisweet chocolate chips
1 cup
white chocolate chips