This receipe appeared in a Bon Appetit in the 80's. I borrowed the magazine to I don't know who and lost track of it. Then I bought the 2nd edition of Dayton's, Hudson's and Marshall Field's "Pot-luck", and there it was! I've been asked for this recipe repeatedly, and now can share again. Tip: 9 inch springform pan can be substitued for 10 inch pan. Bake 50-55 minutes.