Onion cut into semi rings and fry in vegetable oil until soft. Breast, cut into long, fairly thin strips and add to onions. Pour in the soy sauce. Fry with onion for 5-7 minutes on a fairly high heat, with constant stirring.

Cut cucumbers into small dice and add to the chicken. Add pepper and salt. The best course salt to take fragrant, like Svan, Adygei, Basil. Stir, and the fire abated. Cover and simmer минут3-5.

Tomatoes grate on a coarse grater, add the mustard ( I had grey). Mix well. Meanwhile, to the chicken add the flour and quickly stir, to avoid lumps.

Immediately add the sour cream and water. Mix well. Adjust thickness of gravy with water. Leave to simmer chicken for 3 minutes. Then pour our prepared grated tomato with mustard. Stir and leave to protushitsya chicken another 3-4 minutes. The fire off. Serve with your favourite side dish.