Soak the prunes in the red wine for several hours (or overnight). Briefly blanch the almonds in boiling water and peel off the skin.
Chop the venison and fry it vigorously in the oil. Peel and chop the onions and gradually add to the meat. Fry them until they are translucent. Pour the game stock and the red wine with the plums. Add the almonds, a bay leaf, 1/2 cinnamon stick and some juniper berries and bring to the boil briefly. Simmer for about 60 minutes over low heat or until the meat is tender and the onions are cooked to a creamy consistency. Season to taste with salt and pepper. Serve hot.