Walnut Slices ¾ cup brown sugar 1 ½ cups butter 3 ¼ cups flour Mix sugar and butter. Add flour and pack in pan. Bake at 300° F until slightly brown. Cover with topping and bake at 275° F until puffed. Topping 2 cups brown sugar 6 tablespoons flour 1 ½ teaspoons baking powder 1 […]