Place onions in crockpot. Trim ... on the corned beef brisket. If needed, cut brisket ... over brisket. Place cabbage on top of brisket. Cover, ... setting for 5-6 hours.
Rub butter over bottom of ... of potatoes. Shred cabbage and put on top of onions. Break up corned beef over top of cabbage. Spread ... for about 50 minutes.
Peel and slice potatoes, 1/8" ... up head of cabbage into bite size chunks, being ... crumble up corned beef and layer evenly over the ... cool slightly before serving.