1/2 c Unsalted butter; softened 1 c Brown sugar 3 tb Granulated sugar 1 Egg 2 ts Vanilla extract 1/2 ts Baking soda 1/2 ts Baking powder 1/2 ts Salt 1 3/4 c Flour 1 1/2 ts Instant espresso powder; -slightly crushed 8 oz Semisweet chocolate chips