In a bowl mix flour, flaxseed flour and oat bran. They add yogurt with a cigarette in his soda. And add the grated feta cheese and cow Tofu (also grated), a pinch of salt and stir until a sticky dough. Prepare your pan in which you will bake them and paving the baking paper. With greased hands, shape balls (I do them as large walnut) and arrange in pan. On each ball put a piece of butter and gently pressing the sink, sprinkle with sesame or poppy seeds. Bake at 200C about 35 minutes (or mode).