Put the roast in a large resealable plastic bag, pour in 1 cup of the marinade and turn meat until evenly coated. Marinate in the fridge for 30 minutes or longer for more flavor. When the meat is ready, discard any unused marinade.

Preheat the oven to 325ºF.

Place the meat in a shallow roasting pan and cook to desired doneness, about 2 hours for medium. Make sure it reaches an internal temperature of at least 145ºF.

While the meat is cooking, combine the remaining sauce, cranberries, water, red onion and honey in a medium-size saucepan. Bring mixture to a boil over high heat, then turn the heat down to low and simmer, uncovered, for 5 minutes until it starts to thicken.

When the roast is done, remove from the oven and let the meat rest for 15-20 minutes. Slice beef and drizzle with sauce.