Combine apple cider, water , vinegar, honey, salt and pepper in large pot. Add corned beef and bring to a boil , then cover and lower heat.  Simmer until meat is reheated. Remove beef from pot and keep warm. Strain cooking liquid and return to pot. Bring to a boil, add carrots and potatoes, and return to a boil. Cover, lower heat and simmer, 5 to 10 minutes. Add Brussels sprouts and onions and cook until sprouts are tender. Remove vegetables with a slotted spoon and keep warm.

 

To serve, slice meat across the grain in thin slices, reheat in cooking liquid and serve with vegetables.

 

NOTE: For a stronger apple flavor, ladle a small amount of cooking liquid over beef and vegetables when serving.