20 graham crackers, crushed
1/2 lb. butter
2 c. powdered sugar
3 eggs
3 sq. unsweetened chocolate
1 1/2 c. walnuts
1 tsp. vanilla

Line 9 inch square pan with 2/3 of cracker crumbs. Cream butter and sugar beat in eggs one at a time. Stir in melted chocolate, nuts and vanilla. Spread over 2/3 of crumbs in pan, sprinkle with remaining crumbs. Refrigerate overnight or at least 3 hours. Serve ala mode or with whipping cream (Cool Whip).