1 sleeve graham crackers, crushed
2 1/2 tbsp. butter, melted
2 tbsp. sugar
3 (8 oz.) pkg. cream cheese
1 c. sugar
2 tsp. vanilla
5 eggs
3 c. sour cream
1/2 c. sugar
1 tsp. vanilla

Mix first three ingredients and pat into 9 x 13 pan.

Bake at 350°F for 7 minutes. Combine cream cheese, 1 cup sugar, 2 teaspoons vanilla and eggs, added 1 at a time, and mixed well after each egg. Pour onto cooled graham cracker crust and bake at 350°F for 40 minutes. Allow to set 10 minutes. Combine sour cream, 1/2 cup sugar and 1 teaspoon vanilla. Mix well and pour onto warm cheese cake, after it has cooled 10 minutes and bake for an additional 10 minutes. Let cool completely and refrigerate.