|Bittersweet chocolate/Semisweet chocolate||1⁄4 Pound|
|Butter||1⁄2 Cup (8 tbs)|
|Granulated sugar||2⁄3 Cup (10.67 tbs)|
|All purpose flour||3⁄4 Cup (12 tbs)|
|Baking powder||1⁄2 Teaspoon|
|Chopped walnuts||1⁄2 Cup (8 tbs)|
|Bittersweet chocolate/Semisweet chocolate||2 Ounce|
|Icing sugar||1 Cup (16 tbs), sifted|
|Butter||3 Tablespoon, softened|
In 2-cup (500 mL) measure, microwave chocolate with butter at Medium (50%) for 3 to 4 minutes or until melted, stirring once.
Stir and let cool slightly.
In bowl, beat sugar with eggs; blend in cooled chocolate mixture and vanilla.
Combine flour, baking powder and salt; blend into chocolate mixture.
Stir in walnuts.
Spread in ungreased 8-inch (2 L) square baking dish; shield corners with foil.
Microwave at High for 4-1/2 to 5 minutes or until top is no longer sticky and tester inserted in center comes out clean, rotating dish once.
Let stand on countertop for 10 minutes.
Set on rack and let cool completely.
Icing: In small bowl, microwave chocolate at Medium-High (70%) for 2 minutes or until melted, stirring once.
Let cool slightly.
Gradually beat icing sugar into butter; beat in chocolate until well blended.
Stir in vanilla.
Spread over brownies.
Cut into squares.