FIRST LAYER:

1 box brownie mix

Prepare brownie mix per directions on box. Bake; cool.

SECOND LAYER:

1 1/2 c. powdered sugar
3 tbsp. butter, soft
1 1/2 tbsp. milk
1 tsp. peppermint flavoring
Few drops green food coloring

Mix all ingredients together and spread on cool brownies.

THIRD LAYER:

1 1/2 sq. unsweetened chocolate
1 1/2 tbsp. melted butter

Melt chocolate and butter over hot water and spread over second layer. Chill; cut into bars.