INGREDIENTS
1/2 cup
butter, softened
1/2 cup
white sugar
1/2 cup
brown sugar
1
large egg
1 tbsp
vanilla extract
1/2 tsp
salt
1 1/3 cups
all purpose flour
1 tsp
cornstarch
1/2 tsp
baking soda
1/4 tsp
espresso powder (optional)
1/3 cup
semi-sweet chocolate chips
1/3 cup
milk chocolate chips
1/3 cup
white chocolate chips