Sunday Slow Cooker

Slow Cooker Corned Beef and Cabbage

A three-to-four-pound brisket on a bed of potatoes, carrots and onion for seven hours, with cabbage wedges added for the last hour. Six servings.

8 hrs 20 min · 6 servings · Slow cooker

Sliced corned beef on a white plate with cabbage wedges, carrot pieces and softened onion

Recipe by Lily Bennett

on Recipesdarleen

25 recipes by Lily Bennett

Published December 14, 2025 · Updated August 28, 2026

How Recipesdarleen publishes recipes

A three-to-four-pound corned beef brisket set fat-side up on a bed of baby potatoes, carrots and onion with three cups of water or broth and its own spice packet.

Seven hours on LOW, then cabbage wedges tucked in around it for a final forty-five to sixty minutes, and a ten-minute rest before slicing.

Why This Recipe Works

  • The cabbage arrives with an hour left. It is the single decision the recipe turns on — seven hours would reduce it to grey threads, and forty-five to sixty minutes leaves wedges that hold together on the plate.
  • The vegetables go underneath and the brisket on top. They keep it clear of the liquid so it braises in steam rather than boiling, and they take on the corned beef's seasoning from above.
  • Fat-side up, always. Seven hours of that fat cap rendering down through the meat is what keeps a lean, cured cut from drying out.
  • The spice packet is used rather than discarded. It is the pickling spice the brisket was cured for, and there is no added salt anywhere in the ingredient list because corned beef is already salted through.
  • Ten minutes of rest and slicing against the grain. Brisket has long, obvious fibres, and cutting across them is what makes the difference between tender slices and stringy ones.

Eight Hours, And The Cabbage Gets One

Everything about this recipe is patient except the cabbage, which would be grey mush long before the brisket was ready. The gap between them is the recipe.

  1. Hour 0, the bottom of the pot

    Baby potatoes halved, carrots in 2-inch pieces, onion in wedges

    They form a rack. The brisket sits on them rather than in the liquid, which is the difference between a braise and a boil.

  2. Hour 0, on top

    The brisket fat-side up, its spice packet, and 3 cups of water or broth

    Fat-side up so it renders down through the meat over seven hours. The spice packet is the seasoning — nothing else in the list is salted.

  3. Hours 0 to 7, LOW

    Nothing

    Corned beef is brisket, and brisket needs long gentle heat to turn its connective tissue to gelatin. There is no shortcut at a higher setting.

  4. Hour 7

    1 small green cabbage in 6 wedges, around the beef

    Around rather than on top, so the wedges sit in the liquid and steam. Forty-five to sixty minutes is enough to make them tender and not enough to make them mush.

  5. After the pot, on a board

    A 10-minute rest, then slicing against the grain

    Both matter. Brisket sliced with the grain is stringy however long it cooked, and sliced straight out of the pot it loses its juices to the board.

Ingredient Notes

Corned beef brisket with spice packet
Three to four pounds. The packet is part of the ingredient, not packaging — it is the pickling spice the recipe is seasoned with.
Green cabbage, in 6 wedges
One small head, cut into wedges rather than shredded. Wedges hold their shape in the final hour; shredded cabbage would disappear.
Baby potatoes, halved
A pound and a half. Halved rather than whole so they cook through in the same seven hours as the brisket.
Water or low-sodium beef broth
Three cups, and either works. Low-sodium if you use broth — the brisket and its spice packet bring all the salt this needs.
Carrots, in 2-inch pieces
Four, cut large. Small pieces would dissolve into the liquid over seven hours.

How to Make It

  1. Build the vegetable base

    Place the potatoes, carrots and onion in the bottom of a 6-quart slow cooker.

  2. Add the brisket and liquid

    Set the corned beef on top, fat-side up, and sprinkle with the spice packet. Pour in the water or broth.

  3. Cook on LOW

    Cover and cook on LOW for 7 hours.

  4. Add the cabbage

    Add the cabbage wedges around the beef. Cover and cook for 45 to 60 minutes more, until the cabbage is tender and the beef is fork-tender.

  5. Rest the beef

    Transfer the beef to a board and rest for 10 minutes.

  6. Slice and serve

    Slice against the grain and serve with the vegetables and parsley.

Success Tips

  • Put the vegetables in first and the brisket on top of them, never the other way round.
  • Use the spice packet — it is the seasoning, and there is no salt elsewhere in the list.
  • Do not add the cabbage early, however tempting the space looks.
  • Rest the beef the full ten minutes before the knife goes near it.
  • Find the grain before slicing and cut straight across it.

Serving Ideas

Grainy mustard and buttered soda bread. The cooking liquid is very good spooned over the vegetables, though it is salty enough to want tasting first.

Storage and Reheating

Refrigerate

Refrigerate sliced beef and vegetables together for up to 4 days, with a little of the cooking liquid to keep the meat moist.

Freeze

Freeze sliced beef in its liquid for up to 2 months. Freeze the cabbage separately or not at all — it goes limp.

Reheat

Reheat gently in a covered pan with a splash of the cooking liquid. High heat tightens corned beef and undoes the long cook.

Frequently Asked Questions

Can I put the cabbage in at the start?

It would be grey mush by hour seven. The recipe adds it for the final forty-five to sixty minutes for exactly that reason.

Can I cook it on HIGH to save time?

You would get cooked beef, not tender beef. Brisket's connective tissue needs long gentle heat to turn to gelatin, which is what fork-tender means here.

It came out very salty.

Corned beef is cured, so it is salty by nature. Use water rather than broth, and rinse the brisket before it goes in if your brand is a strong one.

The slices were stringy.

Cut with the grain rather than across it. Brisket's fibres run in one obvious direction; find them and slice at right angles.

Recipesdarleen

Slow Cooker Corned Beef and Cabbage

A three-to-four-pound brisket on a bed of potatoes, carrots and onion for seven hours, with cabbage wedges added for the last hour. Six servings.

Prep
20 min
Cook
8 hrs
Total
8 hrs 20 min
Yield
6 servings

Slow cooker

Equipment6-quart slow cooker · Carving board · Sharp knife

Before you startSeven ingredients, and the order they go in matters more than anything you do to them. Root vegetables on the bottom, brisket on top of them fat-side up, cabbage not until hour seven. The spice packet that comes with the brisket is the entire seasoning — there is no salt in the list because corned beef brings its own.

Ingredients

Instructions

  1. Place the potatoes, carrots and onion in the bottom of a 6-quart slow cooker.
  2. Set the corned beef on top, fat-side up, and sprinkle with the spice packet. Pour in the water or broth.
  3. Cover and cook on LOW for 7 hours.
  4. Add the cabbage wedges around the beef. Cover and cook for 45 to 60 minutes more, until the cabbage is tender and the beef is fork-tender.
  5. Transfer the beef to a board and rest for 10 minutes.
  6. Slice against the grain and serve with the vegetables and parsley.
  7. Whole-muscle beef must reach at least 145°F / 63°C and rest at least 3 minutes; cook corned beef until fork-tender.