Emerald Squares - cooking recipe

Ingredients

1 1/4 c. butter
1/2 c. cocoa
3 1/2 c. sifted confectioners sugar
1 beaten egg
1 tsp. vanilla
2 c. graham cracker crumbs
1/3 c. creme de menthe
1 1/2 c. semi-sweet chocolate pieces

Preparation

Bottom Layer:
Combine 1/2 cup butter and cocoa in saucepan over low heat.
Stir until well blended.
Remove from heat; add 1/2 cup sugar, egg and vanilla. Stir in crumbs.
Mix well and press into bottom of a 9 x 13-inch pan.