1 1/2 cups flour
2 cups granulated sugar
3/4 cup plus 2 tablespoons instant cocoa mix
1 1/2 teaspoons salt
1 teaspoon baking powder
1 1/3 cups butter, softened
4 eggs
2 teaspoons vanilla extract
2 tablespoons corn syrup
2 cups coarsely chopped nuts

In large bowl, mix together all base ingredients except nuts. Stir in nuts and pour into a greased 13 x 9-inch pan. Bake at 350 degrees F until center is soft and edges are slightly firm, about 40 to 45 minutes. Do not overbake. Cool.

Mint Frosting
2 cups confectioners' sugar
4 tablespoons butter, softened
2 tablespoons milk
Green food coloring
1/2 teaspoon peppermint extract or Cr?e de Menthe

In small bowl, combine all ingredients and spread over cooled base. Place in freezer for 15 to 20 minutes.

Glaze
3 ounces unsweetened chocolate
3 tablespoons butter

In small saucepan or microwave, melt chocolate and butter together and pour evenly over frosting. Refrigerate until hard. Carefully cut into bars and remove from pan.