Royal Cheese Cake
["2 (8 oz.) cream cheese, soften to room temperature", "1 c. sugar", "5 egg yolks, unbeaten", "2 c. sour cream", "1 tsp. vanilla", "1 tsp. lemon juice", "5 egg whites, beaten stiff"]
["Grease 9-inch spring-form pan with flat bottom with butter and sprinkle graham cracker crumbs."]
["cream cheese", "sugar", "egg yolks", "sour cream", "vanilla", "lemon juice", "egg whites"]