CRUST:

1 1/4 c. graham cracker crumbs
1/3 c. melted butter
1/4 c. sugar

Combine ingredients and press into 9" spring form pan. Bake at 350 degrees for 8 minutes.

FILLING:

8 oz. cream cheese, softened
1/4 c. sugar
1 tsp. vanilla
2 beaten egg yolks
1 (6 oz.) pkg. semi-sweet chocolate pieces, melted
2 egg whites
1/4 c. sugar
1 c. heavy cream, whipped
3/4 c. chopped walnuts or pecans