From THE 150 BEST AMERICAN RECIPES. When I made these, I left out half the butter and sugar in the filling, and all of the butter in the topping and they were still absolutely amazing. I used skim milk because that's all I had, and light butter in the filling. They were well worth making!! Add 1 1/2 cups chopped walnuts and 1 1/2 cups raisins in the filling stage if desired.