Frozen Chocolate Ice Cream Dessert - cooking recipe

Ingredients

2 c. crushed vanilla wafers
1/2 c. margarine
2 sq. unsweetened chocolate
3 egg yolks, slightly beaten
2 c. powdered sugar
3 egg whites, beaten stiff
1/2 gal. vanilla ice cream, softened (take it out while the bottom layer is freezing)

Preparation

Spread 3/4 of the crumbs on bottom of a 13 x 9-inch pan.
Melt margarine and chocolate in medium pan.
Add the yolks and powdered sugar.
Cook, stirring constantly, for a few minutes;
cool.
Fold in the beaten whites.
Pour over the crumbs.
Freeze.
Cover with the ice cream.
Sprinkle with the remaining 1/4 of the crumbs. Freeze.
Serve in squares.