.. with espresso! Yeah!

- 3/4 cup all-purpose flour
- 1/3 cup cocoa
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 2 tbsp melted butter, cooled
- 1 egg
- 1/4 cup packed brown sugar
- 1/4 cup granulated sugar
- 1 tsp vanilla
- 1 tsp espresso powder (or ground coffee)
- ⅓ cup milk (whole milk recommended)
- 1/4 cup mini chocolate chips