How to cook
Dissolve the baking soda in the yoghurt. Sift the flour and make a well in it. Put the yoghurt with baking soda in the well.
Break the eggs 1 by 1. Add the salt and oil.
Crumble the feta cheese and add it to the rest of the ingredients. Stir well to obtain a homogeneous, sticky dough.
You can bake 1 whole phyllo pastry or make several smaller ones.
Oil an oven dish and bake in a preheated 370°F (185 °C) oven. Optionally, you can smear it with a little butter on top.