Triple-Chocolate and Espresso Brownies

In a medium saucepan cook and stir butter, bittersweet chocolate, and unsweetened chocolate over low heat until melted and smooth. Remove from heat; cool. Preheat oven to 350 degrees F. Line an 8x8x2-inch baking pan with heavy foil, extending the foil over edges of pan. Grease foil; set pan aside.

Stir sugar into cooled chocolate mixture. Add eggs, one at a time, beating with a wooden spoon just until combined. Stir in coffee powder and vanilla. In a small bowl stir together flour, baking soda, and salt. Add flour mixture to chocolate mixture; stir just until combined. Stir in semisweet chocolate pieces. Spread batter evenly in the prepared baking pan.

Bake for 30 minutes. Cool in pan on a wire rack. Spread Chocolate Cream Cheese Frosting over cooled brownies. Using edges of foil, lift brownies out of pan. Cut into bars. If desired, sprinkle with chopped coffee beans.