Each kidney cut into half, clean of fat and films. Rinse, cover with cold water. Steep 3 hours, changing the water from time to time. Drain and cut into pieces. Fold in the pan with water, bring to a boil. Drain the first broth, wash kidneys, put into a clean water, bring to a boil (if using sheep kidneys throw them into a boiling water). Add salt and cook for 1.5 hours. Ready kidneys drain.
2
Preheat a frying pan with vegetable oil, fry chopped onion for 2 minutes, add shredded pickled cucumbers and simmer over medium heat for 5 minutes, stirring occasionally. Add 0.5 cup of cucumber brine and a table spoon of tomato paste, soaked rice and stew until rice is almost ready.
3
The broth bring to a boil. Add kidneys, bay leaves, pepper and cook for 5-7 minutes. Add potatoes and carrots cut into thin strips and cook 10 min. Put in a pan steamed vegetables with rice cook for another 10 minutes, if necessary, add salt and pepper to taste, stir. Remove from heat, add the parsley and let stand, covered for 10 minutes ( however it's not traditionally you may add pieces of black olives and lemon as well if you like more picante taste)