Ingredients1 1/2 c Graham cracker crumbs2 tb Sugar1/2 Stick butter, melted1 lb Cream cheese, softened1 c Sugar5 Eggs, separated1 pt Sour cream1 t Vanilla1/2 ts Lemon extractCRUST: Mix together crumbs, sugar, and butter. Press into a 9 spring panFILLING: Cream together cream cheese and sugar. Add 1 egg yolk at a time, then add sour cream and extracts. Beat egg whites stiffly and fold into mixture. Bake in a 325 degree pre-heated oven for 1 hour. Turn oven off and leave cake in the oven another hour. Open oven door and leave cake in oven a half hour longer. Remove from oven and cool. @@