Beat the eggs with a fork, add the crumbled feta cheese. Yeast baking soda in yogurt and add to the feta cheese and eggs. Meltdown cow butter. Redim so: for each spiral banichka use 2 sheets. On the upper crust mazhem brush butter. The entire length at one end of sheet heap 3 or 4 tbsp of the mixture (my sheets were square). Rolled up, then shape ohlyuvche. Put in pre-greased tray. Top greased the banitsi with melted butter. Bake at 200C until a golden color. To me, received 7 banitsi.