3 ounces cream cheese, softened
1/4 cup margarine, softened
3/4 cup granulated sugar
2 eggs
2/3 cup flour
1/2 teaspoon baking powder
1/2 teaspoon salt
1/3 cup chopped nuts
3 tablespoons cocoa
1/2 teaspoon peppermint extract
Several drops green food coloring

Cream together cream cheese, margarine and sugar; beat in eggs.

Stir together flour, baking powder and salt; stir into creamed mixture. Spoon half the batter into another bowl; stir in nuts and cocoa. Drop chocolate by tablespoonsful, checkerboard fashion, into a greased 9-inch square pan. To remaining batter, add peppermint extract and green food coloring. Spoon green batter into spaces between chocolate batter. Swirl to marbleize, but do not over-mix. Bake at 350 degrees F for 15 to 20 minutes.

While dough is baking, prepare Chocolate Glaze.

Chocolate Glaze
1 tablespoon margarine, melted
1 cup confectioners' sugar, sifted
3 tablespoons cocoa
1/2 teaspoon vanilla extract
2 tablespoons boiling water

Beat together until smooth. Remove brownies from oven and pour chocolate glaze over top. Cut at once into bars, then cool.