Cut meat from the previous day into cubes of about 2 cm. Cut remaining carrots and savoy cabbage into strips. Drain the mandarins and collect the juice. Peel onions and cut into slices. Mix tangerine juice, 1/4 liter water, ketchup, soy sauce and vinegar essence
Put rice in boiling salted water and let it swell for about 20 minutes. Heat oil in a wok or frying pan. Fry meat in it until crispy. Take out
Briefly sauté the onions and vegetables in the frying fat. Season with salt and chilli powder. Add tangerine sauce, bring to the boil briefly. Stir starch and 2 tablespoons of water until smooth. Stir into the sauce. Add meat and tangerines and heat up. Season to taste again. Serve with the rice. Sprinkle with sesame seeds if desired.