INGREDIENTS
3/4 cup
all-purpose flour
1 tbsp
cocoa powder
1/4 tsp
salt
1/2 cup
unsalted butter, plus more for pan
3/4 tsp
instant espresso powder
5 oz
semisweet chocolate bar, finely chopped
3/4 cup
granulated white sugar
1/4 cup
light brown sugar
3
large eggs, at room temperature
1 tsp
vanilla extract
3/4 cup
semisweet chocolate chips