In a 6-qt. slow cooker, combine potatoes, carrots, celery and onion. Add corned beef but discard spice packet or save for another use. Place cloves, peppercorns and bay leaf in the coffee filter. Gather sides of the coffee filter to enclose seasonings; tie securely with string. Place in slow cooker and pour the Guinness over top. Cook, covered, on low 8-10 hours or until meat and vegetables are tender, adding cabbage during the last hour of cooking. Discard spice bag. After letting the beef rest 15 to 20 minutes, cut the beef diagonally across the grain into thin slices.

Serve your corned beef with the cooked vegetables and horseradish for a delicious St. Patrick’s Day feast.