Combine marinade ingredients in a large bowl. Mix until well-blended. Add the meat, cover, and marinate in the refrigerator eight to 12 hours, or overnight. Turn occasionally. Preheat oven to 350ºF. Carefully transfer the meat and marinade to a baking dish and cook about 35 minutes, or until a meat thermometer registers 160ºF. When done, the marinade should form a nice glaze. Slice and serve immediately.