This German Apple Streusel Cake aka Apfelstreuselkuchen features a deliciously moist sponge cake with Apples and a Spiced Crumble topping. It is a cake that is great when you have a lot of apples knocking about. What a great way to use them up! The cake itself is found in bakeries all over Germany and it is usually served with a hot cup of Coffee as part of an afternoon tea tradition (Kaffee and Kuchen).