96 squares.

1 1/4 c. butter
1/2 c. unsweetened cocoa powder
3 1/2 c. sifted powdered sugar
1 beaten egg
1 tsp. vanilla
2 c. graham cracker crumbs
1/3 c. creme de menthe
1 1/2 c. chocolate chips

In saucepan combine 1/2 cup butter and cocoa powder. Heat and stir until well blended. Remove from heat, add 1/2 cup powdered sugar, egg and vanilla. Stir in cracker crumbs. Mix well. Press into ungreased 13 x 9 x 2 pan.

MIDDLE:

Melt 1/2 cup butter and creme de menthe. At low speed beat in remaining 3 cups powdered sugar until smooth. Spread over chocolate layer. Chill one hour.

TOP LAYER:

In small saucepan combine 1/4 cup butter and chocolate chips. Cook over low heat until melted. Spread over mint layer. Chill 1 to 2 hours. Cut in SMALL squares. Store in refrigerator.