Cost per Serving:
1. Preheat oven to 350°F. In a bowl, stir flour, baking soda, salt and coffee. In a separate bowl, using an electric mixer on medium speed, beat butter and both sugars until light, about 3 minutes. Beat in egg and vanilla; scrape down sides of bowl as necessary.
2. Add flour mixture to butter mixture and stir until just combined. Gently mix in espresso beans.
3. Spoon dough by tablespoonfuls onto 2 ungreased baking sheets, spacing about 1 inch apart. Bake until lightly browned, about 10 minutes, rotating sheets from top to bottom and front to back halfway through. Let stand 2 minutes, then remove cookies to a wire rack.