Dark Chocolate/Espresso Cookies
1 cup all-purpose flour
1/2 cup unsweetened Dutch-process cocoa
1/2 teaspoon baking powder
1/2 teaspoon salt
1/2 cup (1 stick) unsalted butter, room temperature
1 1/2 cups sugar
2 large eggs, room temperature
1 teaspoon pure vanilla extract
1 tablespoon instant espresso powder
8 ounces bittersweet chocolate, 4 ounces melted and 4 ounces coarsely chopped
1. Preheat oven to 350, with racks in upper and lower thirds. In a medium bowl, whisk together flour, cocoa, baking powder, and salt; set aside.
Using an electric mixer, beat butter and sugar until light and fluffy. Add eggs, one at a time, beating well after each addition; mix in vanilla.
2. Combine espresso powder and melted chocolate; beat into butter mixture. With mixer on low, gradually add flour mixture; mix just until combined. Fold in chopped chocolate.
3. Drop dough by two heaping tablespoons, 3 inches apart, onto two baking sheets. Bake until edges are dry, 14 to 15 minutes, rotating sheets halfway through. Transfer cookies to a wire rack to cool completely. (To store, keep in an airtight container at room temperature, up to 3 days.)