From The American Country Inn and Bed and Breakfast Cookbook, Volume Two. Submitted by the Shenandoah Countryside B&B in Luray, Virginia. I'm quoting the recipe, but when I made it, I didn't use a double boiler -- I just cooked the curd on very low and stirred continuously. Also, for some reason when I beat the egg whites, they never got stiff like your regular meringue, but it didn't seem to make a difference. Also, from the ingredients, it seems to be gluten free. Also, I didn't use all the whipped cream but did spread some on top as a frosting rather than a garnish. Again, I always forget to keep track of how much time it took.