PREPARATION:
- Preheat oven to 350°F. Grease 9-inch square baking pan.
- Melt chocolate and butter with granulated sugar in medium saucepan over low heat, stirring constantly. Pour into large bowl.
- Add eggs and vanilla. Beat with electric mixer until well blended. Stir in flour, cocoa, baking powder and salt; blend well. Fold in walnuts. Spread in prepared pan.
- Bake 25 to 30 minutes or until wooden toothpick inserted in center comes out clean. Place pan on wire rack; cool completely.
- Frost with Buttercream Frosting, if desired. Cut into squares. Decorate with jelly beans, icing gels and colored sugar, if desired. Store in airtight container.
