Cheesecake - cooking recipe

Ingredients

3 (8 oz.) pkg. cream cheese (at room temperature)
4 eggs, separated
1 c. sugar, divided into 3/4 and 1/4
1 tsp. vanilla
16 graham crackers, crushed
1/4 c. butter, melted
1 pt. sour cream

Preparation

Combine cream cheese, egg yolks, 3/4 cup sugar and vanilla; beat until smooth. Beat egg whites stiff; fold into cream cheese mixture. Combine 3/4 of graham cracker crumbs and butter; cover bottom of greased 9-inch tube pan with crumb mixture. Pour cake mixture on top of crumbs and bake at 350\u00b0 for 40 to 50 minutes or until slightly brown. Remove from oven.