Cream together:

1 1/2 lb. cream cheese
1 c. sugar

Add:

5 eggs
1 1/2 tsp. vanilla

Mix until well blended.

CRUST:

18 graham crackers, crushed fine
1 tbsp. sugar
2 tbsp. melted butter

Mix well.

Line bottom and sides of buttered 9 x 12 inch baking dish with graham cracker crust. Fill with cream cheese mixture and bake at 300 degrees for 1 hour.

TOPPING:

1 pt. sour cream
2/3 c. sugar
1 tbsp. vanilla

Blend until smooth. Pour over the cheesecake and return to oven for 5 minutes. Cool on rack for at least 2 hours.