Oven-Braised Corned Beef and Cabbage with a Mustard Crust
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Almost none of the three and a half hours are yours. The brisket braises under a mustard and brown sugar crust, and the cabbage, carrots and potatoes finish in the pan juices. Slice it against the grain and call everyone in.
The short version
Rinse the brisket, rub it with mustard and brown sugar, and braise it covered at 325°F for 2½ hours. Add potatoes and carrots, then cabbage wedges, and cook until fork-tender. Slice against the grain. About 3½ hours, almost all hands-off.
What makes ours better
the tricks Nonna pretends she never taught me
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Braise in the oven, not a boiling pot. Gentle, even heat under foil keeps the brisket moist and the cooking liquid concentrated. Boiling the meat hard pulls out flavor and tightens the muscle.
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Rub the top with whole-grain mustard and brown sugar. The fat cap bastes the meat while the glaze browns into a sweet, tangy crust that cuts the saltiness.
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Add the vegetables near the end. Potatoes and carrots take about an hour, cabbage about 30 minutes. Added late, they soak up the pan juices and still hold their shape.
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Rinse the brisket and skip extra salt. Brisket is cured and brined already. A cold-water rinse takes off the surface brine, and the juices season the vegetables well.
What you need
the cast, in order of appearance
- Flat-cut corned beef brisket4 pounds
- Whole-grain mustard3 tablespoons
- Packed light brown sugar3 tablespoons
- Garlic6 cloves
- Baby potatoes1½ pounds
- Carrots1 pound
- Sweet onion1 large
- Green cabbage1 medium
Corned beef
Vegetables
To serve
read it twice. buy it once.
Steps
deep breath. you’ve got this.
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Heat the oven and rinse
Heat the oven to 325°F. Rinse the brisket under cold running water and pat it dry. Set it fat side up in a roasting pan or large Dutch oven that fits it with some room around it.
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Rub and add the liquid
Stir the mustard, brown sugar and pepper into a paste and spread it over the fat cap. Empty the spice packet into the pan around the meat, add the garlic, and pour in the water at the side so you don't wash off the rub.
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Braise covered
Cover the pan tightly with foil or the lid. Braise for 2 hours, until the brisket is starting to turn tender.
A loose cover lets steam out and dries the top. Crimp the foil tightly around the edges.
About 120 min. Cook mode has a timer for this step.
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Add potatoes, carrots and onion
Raise the oven to 350°F. Uncover and tuck the potatoes, carrots and onion around the meat, spooning some of the pan juices over them. Cover again and cook 30 minutes.
About 30 min. Cook mode has a timer for this step.
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Add the cabbage
Nestle the cabbage wedges around and on top of the vegetables and spoon over more juices. Cover and cook another 30 minutes, then uncover and cook 15 to 20 minutes more, until the cabbage is soft and a fork slides easily into the carrots and the thickest part of the brisket.
About 45 min. Cook mode has a timer for this step.
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Rest and slice
Move the brisket to a cutting board and rest it 15 minutes. Slice across the grain, in thin slices, with a serrated or sharp knife. Spoon the vegetables and pan juices onto a platter around the meat, and sprinkle with parsley.
Slicing with the grain gives you stringy meat. Look for the lines of the fibers and cut across them.
About 15 min. Cook mode has a timer for this step.
Good to know
the stuff I’d tell you over the phone
- Packaged brisket comes as flat cut (leaner, slices evenly) or point cut (fattier, more flavor). Either works. Allow about 45 minutes per pound at 325°F.
- If your pan is too small for everything, cook the cabbage separately in some of the strained juices on the stovetop, covered, for 20 to 25 minutes.
- Keep leftovers for sandwiches or hash, and save the juices.
- It's ready when a fork twists easily in the thickest part. If it still resists, give it another 30 minutes.
- Storage. Fridge, 4 days, with some juices to keep the meat moist. Freezes for 2 months, sliced, in its juices. Reheat covered in a 300°F oven or gently in a skillet.
Questions, answered
the questions my cousins text me
Should I rinse corned beef before cooking?
Yes. A quick rinse removes the surface brine, which makes the meat and the juices less salty. Don't soak it unless you are cutting back on salt.
How long do I cook corned beef per pound?
In a 325°F oven, plan on about 45 minutes per pound for a tender brisket, so about 3 hours for 4 pounds. Go by tenderness with a fork, not the clock.
Why is my corned beef tough?
It's usually undercooked, not overcooked. Brisket needs long, gentle cooking to dissolve its connective tissue. Keep it covered, keep going until a fork slides in easily, and slice against the grain.
When do I add the cabbage?
About 45 minutes before the beef is done. Added at the start, it falls apart and turns sulfurous.
Can I make corned beef and cabbage in a slow cooker?
Yes. Cook the brisket with the rub, spices and water on low for 8 to 9 hours. Add the potatoes and carrots for the last 3 hours and the cabbage for the last hour.
From the table
Made it? I want the full report: first bite, best compliment, and who tried to take the leftovers home.
Made it?
be honest. I can take it. probably.
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Published October 28, 2026.