*Could use Cinnamon Crisp Cookies instead. Blend the sour cream and cream cheese well and add the egg yolks (which have been beaten first) and the other ingredients. Whip egg whites until stiff and fold cheese and yolk mixture in CAREFULLY. Make sure it is all incorperated. Pour into a springform pan and bake at 180ºC or one hour. Then leave door closed for one hour; and then oven door ajar for last5 hour (3 in all). Cake is creamy and smooth and may crack a bit on top. Good reason to make a strawberry topping. This cake was given to Jeannie Toll by one of Mort's old girlfriends about 37 years ago. She gave it to me when Mort and I told her about our engaement...hence the title. Betty Mondress gave me her 'recipe' card as mine dissappeared years ago. I used my copy of the LEVITTOWN SISTERHOOD COOKBOOK; (Pa..circa 1957) until it disintegrated. Of course i submitted it as my own...<G>. Ellen; did you know that? Mom was 'bad'in her younger days!!!