2 lg. pkg. cream cheese
1 pt. sour cream
1 c. sugar
1 tsp. vanilla
1 tbsp. flour
5 eggs, separated
5 or 6 graham crackers, crushed

Cream yolks and sugar, add cream cheese; one at a time. Blend well, then add sour cream, flour and vanilla. Whip egg whites and fold in. Grease spring form pan and press crumbs.

Put in pan of water about 1 or 2 inches. Bake at 350 degrees for 45 to 55 minutes or until brown on top. When done, open oven door and leave cake in oven for 1 hour.