Peel garlic and ginger and puree with a little water.
Peel the onions and cut into rings. Froth up yogurt, stir in onion rings, pepper, garlic, ginger and salt.
Cover chicken meat with the marinade and marinate at least 2 hours in the refrigerator evenly.
Take onion rings from the marinade. Heat oil in a frying pan and fry marinated onions about 6 minutes. Add the meat with the remaining marinade and fry until all the liquid has evaporated.
Douse with with 200 ml of water and simmer covered until the meat is tender.