Step 1

Rub the roast with salt and pepper and place in a large non-metal bowl. In a medium saucepan, combine wine, vinegar and 2 cups water and bring to a boil. Stir in garlic, onion, bay leaves, peppercorns, sugar and cloves and pour the marinade over the beef. Cover and refrigerate 12 hours or overnight.

Step 2

Remove the meat from the marinade and thoroughly pat dry. Dredge in 1 cup flour (may use more or less if necessary). Heat bacon grease in a Dutch oven over medium-high heat. Brown roast in drippings on all sides. Pour in half the marinade, reduce heat to low, cover and simmer until tender, 3 hours.

Step 3

Remove meat to serving platter. Increase heat to medium-high; mix 2 tablespoons flour with 2 tablespoons water and add to pan, stirring until gravy thickens. Stir in sour cream. Pour sauce over sliced meat.