Once you've made brownies with bittersweet chocolate, no other chocolate will do. This yummy brownie recipe, enhanced with chunks of bittersweet chocolate and walnuts, proves the point.
Heat oven to 350°F. Line a 9-inch square baking pan with nonstick foil. Set aside.
Set 2 ounces of the chocolate aside. Chop remaining 6 ounces and place in a large microwave-safe bowl along with butter. Microwave on HIGH power for 1 minute; stir. Microwave an additional 30 seconds, then stir until smooth.
Stir in sugar, flour, baking soda and salt until well blended. Add eggs and vanilla; stir until smooth. Chop remaining 2 ounces chocolate. Stir into batter along with walnuts. Pour into prepared pan, spreading level.
Bake brownie at 350°F for 40 minutes until center is firm when lightly pressed. Remove from oven; cool in pan on rack for 10 minutes. Use foil to lift brownie from pan; place directly on rack to cool completely. Dust with confectioners sugar before cutting into squares.