Preheat the oven for the haunch of venison (electric cooker: 150 °C/circulating air: 125 °C/gas: see manufacturer). Wash the rosemary and shake dry. Press juniper in a mortar. Clean or peel, wash and cut soup vegetables into pieces.
Rinse leg of venison cold, dab dry and season with salt and pepper. Heat the oil in a roasting pan and fry the leg of venison on all sides.
Spread the vegetables around the leg, roast for about 2 minutes. Deglaze with wine, add rosemary and juniper. Cover the leg with bacon. Cook in a hot oven for about 2 hours. After approx. 1 hour, cover the leg with the resulting roast stock and add some water if necessary.
For the dumplings, dice the buns into small pieces. Heat the milk, pour over the dumplings and soak for about 30 minutes. Peel and chop the onion. Heat 1 tbsp. butter, fry onion in it. Wash chives, shake dry, cut into rings.
With onion and eggs knead under the rolls. Season with salt and pepper. Form approx. 15 dumplings from it. Cover and chill for at least 1 hour.
For the savoy cabbage clean, wash and cut into wide strips. Heat 2 tablespoons of butter in a saucepan and sauté the savoy cabbage. Add approx. 100 ml water and stew for approx. 10 minutes. Season with salt and pepper.
Take out the roast, remove the bacon. Wrap leg in tin foil. Pour roast stock with vegetables through a sieve into a pot. Add cherries with juice, bring to the boil. Mix 3 tablespoons of water with starch, stir into the sauce, simmer for about 2 minutes.
Season with salt and pepper.
Cook the dumplings in plenty of boiling salt water for 8-10 minutes. Take them out and let them drip off. Serve with leg of venison, savoy cabbage and cherry sauce.