cup yogurt or sour cream with quarter cup sugar (regular is OK since this is so liquid) and 1 Tablespoon vanilla or other flavoring (lemon juice, extract, etc.) raise the oven temperature to 475 and bake another 10 minutes. (see also Basic Cheesecake Filling and Basic Cheesecake Crust) * The Polka Dot Palace BBS 1-201-822-3627.