Sous Vide Corned Beef

October 25, 2018

Sous Vide Corned Beef

Corned beef is a brined brisket - an Irish-American and Jewish-American invention, not an import from Ireland, despite the St. Patrick’s Day association. The “corning” refers to the coarse grains of salt once used to cure it, not corn itself. Traditionally the meat goes into a big pot on the stove and simmers for hours until it collapses into tender shreds. This recipe skips the stovetop and lets a precision water bath do the work instead.

That change of method changes what corned beef can be. A stovetop braise only has one gear: cook it hot and long enough to break down the collagen, and the meat is well past done by the time it’s tender. Sous vide, held at exactly 140°F (60°C) for two full days, breaks down the same collagen at a temperature low enough that the meat stays firm and juicy - sliceable in clean pink slices rather than shreds. It isn’t a faster method; the water bath runs far longer than any braise. It’s a way to reach a texture braising simply can’t.

The recipe starts from a store-bought pre-corned brisket, the widely available option, already brined and usually sold with its own spice packet. Pat it dry, season it, vacuum-seal it, and let the water bath run for two days. A short sear afterward is purely cosmetic, for color and a bit of crust - the meat is already fully cooked and safe to eat straight out of the bag. Save the bag juices; they carry all the corned-beef flavor - salty, deeply savory, and warm with pickling spice - and make an excellent poaching liquid for potatoes, carrots, and cabbage if you want the classic plate alongside it.

Serve it warm, sliced thin against the grain, with the boiled vegetables and a spoonful of mustard. It also makes some of the best sandwich meat there is - cold and thinly sliced, piled onto rye with more mustard the next day.

Ingredients

Serves 6

1.8 kg corned beef brisket, flat cut, with its spice packet
potatoes, halved, for serving
carrots, cut into large chunks, for serving
cabbage, cut into wedges, for serving

Directions

If the brisket tastes strongly of salt, soak it in cold water in the refrigerator for a few hours, or overnight, changing the water once, then pat it dry.

Preheat the water bath to 140°F (60°C). Scatter the spice packet over the brisket, then vacuum-seal it, or seal it in a zip-top bag using the water-displacement method to force out the air.

Submerge the bag fully in the bath - a rack, sous vide magnets, or a heavy plate will keep it from floating to the surface - and cook for 48 hours.

Lift the bag out of the bath and reserve the juices that have collected inside it. Pat the brisket dry.

For a browned crust, sear the brisket in a hot pan or under the broiler, fat side down first, just until colored on all sides. This step is optional and purely cosmetic - the meat is already fully cooked.

To serve with vegetables, bring the reserved bag juices to a boil with a little extra water or stock. Add the potatoes and carrots first, then the cabbage wedges once they’re a few minutes from tender, and simmer until everything is soft.

Slice the corned beef thinly against the grain and serve with the vegetables.

Notes

At 140°F (60°C), the brisket comes out firm and sliceable, a texture stovetop braising can’t produce. If you prefer the classic, fully tender texture that falls apart under a fork, cook at 170°F (77°C) instead, for 24 hours.

You can home-cure a raw brisket instead of buying one pre-corned: brine it for 5–7 days in a solution of water, kosher salt, brown sugar, and pickling spice, with Prague Powder No. 1 (curing salt) added for color, flavor, and the safety of a multi-day cure - check the exact dose against a curing-salt calculator rather than guessing. Rinse the brined brisket well before bagging.

Don’t add extra salt to the bag; the meat is already fully salted from curing. And don’t be tempted to sear before cooking - searing is only for color afterward and adds nothing to doneness.