1. Make dough. Heat up the yogurt with a little oil, warm the mixture, add salt, sugar, flour with the yeast. Knead and put in a warm place for 30 min.

2. Meanwhile, prepare the filling. Peel potatoes and onion

3. Promorozhennye herring cleaned from the skin, bones, finely chop

4. Under the same scenario, cut the potatoes and onions. Mix with herring, season with salt and spices.

5. The dough is ready, rose. Divide into 4 pieces if I want to have 2 pie. Roll out the bottom layer slightly larger than the top. Grease the pan with oil. Put a larger layer first, then the filling, spread on top of a smaller layer. Semipaved in the middle make a hole. Preheat the oven to 200 degrees, bake 20-25 minutes ( depending on oven).