Ricotta Cheese Cake
["1 lb. Ricotta cheese", "2 (8 oz.) pkg. cream cheese", "1 pt. sour cream", "1 1/2 c. sugar", "3 eggs", "3 Tbsp. flour", "3 Tbsp. cornstarch", "juice of 1 lemon", "1 tsp. vanilla", "1 stick margarine, melted and cooled"]
["Mix the cheeses.", "You can do this in a mixer.", "Beat eggs.", "Add sugar and flavorings.", "Add egg mixture to cheese.", "Beat well. Blend in flour, cornstarch and then cooled margarine.", "Blend well. Pour into 9-inch spring-form pan.", "(Lightly greased, you can use crumb mixture to line the bottom of the pan, if you wish.", "Original recipe does not call for that.)", "Bake 1 hour at 325\u00b0.", "Turn off oven and leave cake in for 2 to 3 hours.", "(I have left it in overnight.)"]
["Ricotta cheese", "cream cheese", "sour cream", "sugar", "eggs", "flour", "cornstarch", "lemon", "vanilla", "margarine"]