Basic braise/oven method: A corned beef braise is best ... and simmer for about 2½ to 3 hours or until meat is fork-tender. Slow cooker: Corned beef cooks well in a slow cooker or Instant ...

Slow cooker: Corned beef cooks well in a slow cooker ... Serve with the mustard sauce. Preheat the oven to 300 degrees. Have ready three sheets of foil to wrap the corned beef in.