Ingredients.

Large cucumber using the blender to turn into a puree. The average cucumber RUB on a coarse grater. From herring to make a fillet.

Now my big secret. If herring is very salty then take the puree cucumber and squeeze juice, pomace discarded. Do the same thing with grated on a coarse grater. Only the cake is left behind. And in this juice, put the fillet for 15-20 minutes. Fillet becomes salted and not as dense as in welding. But the combination of fish and milk I do not like. Take out and dry thoroughly with paper towel. Otherwise, the pita will dampen.

Potatoes to peel, boil, mash with butter and cool. Add salt, pepper, finely cut dill. Mix well.

Spread one sheet of lavash. To grease with sour cream and put a thin layer of potato mixture.

To pressed cucumber, add cut dill, herring and green onions. Mix well. On potato layer, put the second pita to grease with sour cream and put the herring mass. Rolled into a roll.

Wrap in cling film and remove 1 hour in the refrigerator.