A recipe for making apple cream filling for cake. – Beat white of 1 egg very stiff. Add 1 cup of granulated sugar and beat well. Quickly grate one raw apple into the egg and sugar, add the juice of 1/4 lemon and beat 20 minutes, when it will be light and foamy. This icing is soft and creamy. Coarsely chopped nut meats may be added if liked.