INGREDIENTS
4
Eggs
1
cut into 4-inch pieces 8 ounces bittersweet chocolate
1 cup
All-purpose flour
1 cup
Brown sugar, light packed
1/2 cup
Chocolate chips, semisweet
2 tbsp
Cocoa powder
1 tsp
Kosher salt
1/2 cup
Milk chocolate chips
1 cup
Sugar
1 tbsp
Vanilla extract
1 tsp
Espresso, instant powder
2 sticks
Butter, unsalted