Dice meat from the previous day. Clean, wash and cut the vegetables into strips. Drain the mandarins and collect the juice. Peel onions and cut into slices
Put rice in about 1/2 l boiling salted water, cover and let it swell for about 20 minutes
Mix tangerine juice, 1/4 l water, ketchup, soy sauce and vinegar. Heat oil in a wok or frying pan. Fry the meat in it until crispy, take it out. Fry the onions and vegetables briefly in the frying fat. Season with salt and chilli. Add the ketchup sauce and bring to the boil briefly. Stir starch and 1 tbsp. water until smooth. Stir into the sauce, bring to the boil
Heat the meat and mandarins in it. Season to taste again. Sprinkle with sesame seeds if necessary. Add rice