I. Use ground walnuts or roasted ground almonds in the filling.
II. Top the torte with a meringue: Whip 2 egg whites and 2 tablespoons sugar until very stiff. Cover the top pancake with this meringue. Pipe it on with a pastry tube, or spread on with a knife. Bake in a preheated 300°F. oven for 10 to 15 minutes, or until golden brown.