Clean, wash and halve the Brussels sprouts and cook in boiling salted water for about 3 minutes. Drain the sprouts and let them drain. Peel, wash and cut carrots into small pieces. Wash the rosemary, shake dry and chop coarsely.
Peel oranges so that the white skin is completely removed. Remove the fillets with a sharp knife between the parting skins. Squeeze the juice out of the parting skins and collect it. Wash and quarter the tomatoes.
Wash the chicken thoroughly, dab dry and cut into 8 pieces. Rub chicken parts with salt and paprika and put them on a fat pan. Spread vegetables around the chicken, spread mettenden, orange fillets and rosemary on top.
Pour in orange juice and stock.
Roast in the preheated oven (electric cooker: 175 °C/circulating air: 150 °C/gas: see manufacturer) for 1-1 1⁄4 hours. Turn vegetables from time to time. Remove everything. Season vegetables with salt and pepper. Fresh country bread tastes good with them.