Crust: In a large bowl: put graham cracker crumbs. Knead in 1/2 stick of butter. Press onto bottom of 9" prepared spring form pan. Chill for about 15 minutes before filling. Filling: Dust off the blender. Drop in 1 tub of ricotta (16 oz) 1 brick of cream chesse (12 oz), 1/2 tsp vanilla, 1/3 cup sugar, 2 eggs and 1/4 stick of butter. Blend until smooth. Pour GENTLY on top of crust. Repeat for seond half of ingredients. Bake @ 325 NO HO