1 1/4 c. graham cracker crumbs
1/4 c. sugar
1/4 c. butter (3 tbsp.)

Mix and spread in 9 or 10 inch greased spring pan.

1 lb. Philadelphia cream cheese
1/2 c. sugar
3 eggs
3/4 tsp. vanilla

Soften cream cheese. Add sugar and beaten egg yolks and vanilla. Beat egg whites. Fold whites into mixture. Spread in pan. Bake in pre-heated oven at 375 degrees for 20 minutes. Remove, cool 15 minutes.

Heat oven to 475 degrees.

1 pt. sour cream
1/4 c. sugar
1 tsp. vanilla

Mix and pour over cheese mixture. Cover from side to center. Bake 10 minutes. Cool and refrigerate 2 hours or overnight.