Slice the onions and place on top of short ribs. Cover with wine. Make a sachet with juniper berries, bay leaves, thyme, and rosemary and place in the liquid. Marinate, refrigerated, for 24 hours.
Remove buffalo from marinade, reserving marinade. Heat 1/2 cup oil in a medium sized stockpot. Lightly coat buffalo in the flour and brown on both sides. Remove buffalo and add the marinated sliced onions, cooking until golden brown. Pour off excess oil. Add back the buffalo with the onions, and the reserved marinade. Simmer for ten minutes. Add the veal stock and chokecherry preserves. Simmer covered for about two hours. Adjust seasoning, to taste.
Heat 1 tablespoon oil in a large saute pan. Add mushrooms and onions and saute until onions begin to brown, about 15 minutes. Season with salt and pepper.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.