Cheese Cake

Directions

1. 1
   Grease spring-form pan with butter; dust with graham cracker crumbs.
2. 2
   Beat cream cheese and Ricotta until creamy.
3. 3
   Blend in sugar and eggs.
4. 4
   Add cornstarch, lemon juice and vanilla until blended.
5. 5
   Add melted butter and sour cream and blend well.
6. 6
   Pour into a 10-inch spring-form pan up to top ring.
7. 7
   Bake in preheated 250° oven for about 1 1/2 hours until firm around edges.
8. 8
   Turn off heat and leave in oven for 2 hours.
9. 9
   Cool on rack, then put in refrigerator until morning.
10. 10
    Remove sides of pan.
11. 11
    Top with any topping you wish or eat plain.