- Place brisket, seasoning packet and onion in a large Dutch oven or pot.
- Cover with water 6 inches above meat.
- Bring to a boil and boil for 30 minutes.
- Reduce to medium-low or to a gentle boil. Cover and cook for 3 1/2 hours.
- Remove onions, cut into wedges and put back in the pot.
- Add carrots, cabbage and then potatoes.
- Cover and cook 30 more minutes or until potatoes are tender.
- Remove vegetables, but keep the meat in the juices until you’re ready to slice it so it won’t dry out.
Side Sauce
1/2 cup mayonnaise
1/2 cup sour cream
2 Tbsp. horseradish
1/2-1 tsp. Worcestershire sauce
Mix all sauce ingredients together the night or day before and then serve on the side with your corned beef.