Peel or clean and wash the vegetables. Peel onion. Chop everything roughly. Wash the rosemary sprigs and shake dry.
Wash the meat, dab dry. Rub with salt and pepper. Spread vegetables and rosemary on the fat pan. Place the meat on top. Roast in the preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: level 3) for approx. 50 minutes.
Dissolve broth in 1⁄2 l hot water and pour on after approx. 20 minutes. Spread the meat with jam approx. 10 minutes before the end of cooking time.
6-7 Squeeze the mandarins, 1⁄4 l Measure the juice. Peel the remaining mandarins and divide into slices.
Keep meat warm. Pour stock through a sieve into a pot. Add tangerine juice and bring to the boil. Stir starch and 3 tbsp. cold water until smooth. Stir into the sauce and bring to the boil again. Add mandarins.
Season to taste with salt and pepper or cayenne pepper. Arrange everything. Broccoli and roast potatoes taste good with it.