Dr. Oetker baking mixture Russian pie 670 g : A baking mixture from the house of dr. Oetker is the Russian puff cake. The cake specialty consists of a kneading dough with a delicious quark filling. You need for the preparation, in addition to the baking mix, only a few other fresh ingredients, such as eggs, butter and quark. A beautiful back specialty by Dr. med. Oetker.