INGREDIENTS
•
butter - 1/2 cup (125g), softened
•
brown sugar - 1 cup
•
sugar - 3 tbsp
•
egg - 1, large
•
vanilla extract - 2 tsp
•
all-purpose flour - 1 3/4 cups
•
baking powder - 1/2 tsp
•
baking soda - 1/2 tsp
•
salt - 1/2 tsp
•
instant espresso powder - 1 1/2 tsp
•
chocolate chips - 1 1/2 cups (200g), semi-sweet
•
walnuts - 1 cup, chopped optional