This is my best recipe for a fork-tender brisket you can actually slice, in a sweet and tangy onion gravy that tastes like it took all day. It mostly did, but the crock pot does the hard work. You sear it, build the sauce right in the pot, and walk away for hours.
Brisket At A Glance
Prep
30 min
COOK
5-10 hours
Total
6.5 to 11 hours
Serves
6 to 8
Pan
6 quart or larger slow cooker
Main ingredients: Beef brisket, onions, carrots, beef broth, red wine, tomato paste, tomato sauce, brown sugar
The Brisket My Husband Hoped Our Guests Would Hate
Brisket braised with onions is something we often eat for the holidays. So when we invited friends over for a special dinner, I got a beef brisket for the crock pot so it would be simple to prepare. While brisket is traditionally made in the oven, cooking it in a crock pot means you can walk away and the oven stays free for other dishes, like the scalloped potatoes I also made for dinner.
It came out perfect. Tender, sliceable, and SO GOOD with all those soft, sweet onions. My husband Greg took one bite and said, “Man, I hope our guests don’t like this so there are more leftovers for me.” Ha ha. (He still got his leftovers, and they were great the next day.)
I use tomato sauce and a splash of cider vinegar where a lot of recipes use ketchup. We like a little sweetness in a dish like this, and the brown sugar and vinegar give you that sweet-and-tangy balance that is such a hit.
Let’s dig in!
Tips and Notes Before You Start
- Cut a small corner off before you cook it. Once it’s braised, the grain is hard to see. That cut corner tells you which way to slice for the best results.
- Elevate your meat. Put the brisket on the carrots while it cooks so it doesn’t sit right on the hot surface.
- Let it rest before slicing. Thirty minutes keeps the slices from shredding.
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What You’ll Need for Crock Pot Brisket
Beef brisket. A 3-4 pound flat cut. The flat is the leaner, even-thickness half of a whole brisket, so it slices into neat pieces. Mine was 3.5 pounds, and I trimmed the fat cap down to about 1/4 inch.
Yellow onions. Sliced into thin half-moons. It looks like a LOT of onions, and that’s the point. They cook down into the sweet, jammy base of the gravy.
Carrots. Cut into 2-inch chunks. They go in the bottom of the pot, so the brisket sits up on them instead of on the hot crock.
Tomato sauce, cider vinegar, and brown sugar. This is the sweet-and-tangy part. Plain tomato sauce plus a splash of apple cider vinegar does what ketchup does in a lot of brisket recipes, but you get to control the sugar.
Red wine and beef broth. I used Cabernet, but any dry red you’d drink works. Use low-sodium broth so you control the salt.
Tomato paste, Worcestershire, garlic, fresh thyme, and bay leaves. These add savory depth in the background.
Potato starch. It thickens the gravy into a glossy sauce without any floury taste. Cornstarch works the same way, and I’ll tell you how to use flour instead below.
What’s the Best Cut of Brisket for the Crock Pot?
The flat cut is best for brisket. It’s evenly thick, so it cooks evenly and slices beautifully. The point cut has more fat running through it, which makes it SO tender but also more likely to fall apart when you slice it. If the point is all you can find, it’ll still taste wonderful. It just might end up more chunky than sliced.
Can I Make Brisket Without Wine?
Yes. Use more beef broth in place of the wine. The wine adds a little depth and acidity, and the vinegar in the sauce covers some of that for you.
How to Make Crock Pot Brisket
I made this in my Ninja PossibleCooker, which sears right in the pot, so everything happens in one place. If your slow cooker can’t sear, just do the first few steps in a large skillet and move everything over. We’re really making this in two stages: building the flavor on the stove side, then letting the slow cooker turn the brisket tender.
Step 1: Trim the brisket and cut off a corner
Trim the thick fat cap down to about 1/4 inch. You want a little fat for flavor, but a thick layer just turns into grease in the pot. Then look at which way the muscle fibers run, and cut a small corner off straight across them. This helps because the grain gets hard to see once the brisket is cooked, and that cut corner shows you exactly which way to slice later.
Pat the brisket dry and season it all over with the salt and pepper.
Step 2: Sear the brisket
Heat the oil on Sear/Sauté (or in a large skillet over medium-high heat) and brown the brisket on both sides, about 4 to 5 minutes per side. Be careful not to move it around too soon. It’ll release from the pan on its own when it has a good crust. Don’t worry if the fat side browns lighter than the meat side, that’s totally normal. Move the brisket to a plate.
Step 3: Cook the onions
Add the onions to the drippings with a pinch of salt. Cook them over medium heat for about 10 minutes, stirring and scraping up the browned bits from the brisket, until they’re soft and starting to turn golden. They don’t need to fully caramelize. They’ll keep cooking down for hours.
Step 4: Build the sauce
Push the onions to the side, add the garlic and tomato paste to the middle, and stir them around for a minute or two. Cooking the tomato paste for a bit takes away its raw, tinny taste. Pour in the wine and scrape the bottom of the pot, then let it bubble for a minute.
Now stir in all of the broth, the tomato sauce, vinegar, brown sugar, and Worcestershire until the sugar dissolves.
Step 5: Layer the carrots, brisket, and onions
Scoop the onions and sauce into a bowl for a minute. Spread the carrots across the bottom of the pot.
Set the brisket on top of the carrots with its best-browned side facing up.
Pour the onions and sauce over the top and tuck in the thyme and bay leaves. The liquid won’t cover the brisket, and that’s exactly right. A slow cooker doesn’t let much steam escape, so the brisket braises in its own juices and the onions.
Step 6: Slow cook until fork-tender
Put the lid on and cook on HIGH for about 5 hours, or LOW for 8 to 10 hours. Mine was perfectly tender at 5 hours on HIGH. It’s done when a fork slides into the thickest part with very little resistance. If it still fights you, give it another 30 to 45 minutes and check again.
Step 7: Rest the brisket
Carefully lift the brisket onto a cutting board in one piece. Two big spatulas help. Tent it loosely with foil and let it rest for 20 to 30 minutes. This helps because the juices settle back into the meat, and the slices hold together instead of shredding. Fish out the bay leaves and thyme stems, and use a slotted spoon to lift the carrots and onions into a bowl. Keep them warm.
Step 8: Save the gravy
Skim off any fat you see on top of the liquid, put it in a saucepan, and bring to a simmer. Whisk the potato starch into a little cold water, stir it into the liquid, and remove from the heat as soon as it thickens. Taste and add salt if needed.
How Do You Slice Brisket Against the Grain?
Find the corner you cut off before cooking and slice parallel to that cut edge, about 3/8 inch thick. Slicing across the grain cuts the long muscle fibers into short pieces, and that’s what makes every bite tender. Slice with the grain and even a perfectly cooked brisket can be stringy and chewy.
Warm brisket is softer than cold brisket, so slightly thicker slices hold together best. A long, sharp knife and gentle sawing strokes work better than pressing straight down.
Shingle the slices on a warm platter, tuck the carrots and onions around them, and spoon the gravy over the top. Pass the rest of the gravy at the table.
Can I Make Brisket Ahead of Time?
Yes, and brisket is one of the best make-ahead dinners there is. Cook it the day before, let it cool for about an hour, then refrigerate the whole brisket right in its cooking liquid. The next day, lift off the hardened fat, slice the brisket cold (cold brisket slices beautifully thin and neat), and lay the slices in a baking dish. Make the gravy, pour it over the slices, cover with foil, and reheat at 325°F for 30 to 40 minutes, until hot all the way through.
How Long Can Brisket Stay on Warm?
Once it’s sliced, you can lay the slices back in the pot over the onions and carrots, pour the gravy over, and hold it on the Keep Warm setting for a couple of hours. Keep the lid on so it doesn’t dry out. You can also keep the platter covered with foil in a low oven until dinner.
How to Store and Reheat Brisket
Refrigerate leftovers in the gravy, covered, for up to 4 days. Keeping the slices in the gravy stops them from drying out. Reheat them gently, covered, in the microwave or in a 325°F oven until hot. See my guide to storing leftovers.
Brisket also freezes well in its gravy for up to 3 months. Thaw it overnight in the fridge before reheating.
Crock Pot Brisket FAQs
Why is my brisket tough?
Usually it just needs more time. Brisket gets tougher before it gets tender, so if it’s firm, put the lid back on and give it another 30 to 60 minutes. Slicing with the grain can also make it chewy.
Does brisket need to be covered in liquid in the crock pot?
No. Just an inch or so of liquid is plenty, because the onions and the brisket release a lot of juice as they cook.
Should the fat side be up or down?
I put the best-browned side up so it looks pretty when it comes out. After trimming to 1/4 inch, the fat side doesn’t make much difference to how tender it gets.
Can I use onion soup mix?
Yes. If you love the classic onion soup mix brisket, stir a packet into the sauce and leave out the salt, since the mix is already salty.
Brisket Recipe (Crock Pot)
Equipment
- slow cooker 6-quart or larger (one with a sear function is easiest)
- large skillet if your slow cooker can’t sear
- Medium saucepan and whisk
- Cutting board and long, sharp knife
Ingredients
- 3-4 pounds beef brisket (flat cut)
- 1 1/2 teaspoons table salt , plus a pinch for the onions
- 1 teaspoon black pepper
- 1 tablespoon vegetable oil
- 3 large yellow onions , sliced into thin half-moons
- 1 tablespoon minced garlic
- 2 tablespoons tomato paste
- 1/2 cup dry red wine , such as Cabernet
- 2 cups low-sodium beef broth
- 1/2 cup tomato sauce
- 2 tablespoons apple cider vinegar
- 1/2 cup brown sugar , packed
- 1 tablespoon Worcestershire sauce
- 1 pound carrots , peeled and cut into 2-inch chunks
- 4 sprigs fresh thyme (or 1 teaspoon dried)
- 2 bay leaves
- 2 tablespoons potato starch
- 1/4 cup cold water
Instructions
- Trim the brisket’s fat cap to about 1/4 inch. Cut a small corner off straight across the grain to mark the slicing direction. Pat dry and season all over with the salt and pepper.
- Heat the oil in the slow cooker on Sear/Sauté (or in a large skillet over medium-high heat). Brown the brisket on both sides, 4 to 5 minutes per side. Move it to a plate.
- Add the onions and a pinch of salt to the drippings. Cook over medium heat about 10 minutes, stirring and scraping up the browned bits, until soft and starting to turn golden.
- Stir in the garlic and tomato paste and cook 1 to 2 minutes. Add the wine, scrape the bottom, and simmer 1 minute. Stir in the broth, the tomato sauce, vinegar, brown sugar, and Worcestershire until the sugar dissolves.
- Scoop the onions and sauce into a bowl. Spread the carrots in the bottom of the slow cooker. Set the brisket on top, best-browned side up. Pour the onions and sauce over it and tuck in the thyme and bay leaves. Don’t add more liquid.
- Cover and cook on HIGH about 5 hours, or LOW 8 to 10 hours, until a fork slides into the thickest part with very little resistance.
- Move the brisket to a cutting board, tent with foil, and rest 20 to 30 minutes. Discard the bay leaves and thyme stems. Lift the carrots and onions into a bowl with a slotted spoon and keep warm.
- Skim the fat from the cooking liquid. Pour the liquid into a saucepan and bring to a simmer. Whisk the potato starch into the cold water, whisk it into the simmering liquid, and remove from the heat as soon as it thickens. Taste and add salt if needed.
- Slice the brisket parallel to the cut corner (across the grain), about 3/8 inch thick. Arrange on a platter with the carrots and onions and spoon gravy over the top. Serve the rest of the gravy on the side.
Nutrition
Notes
- Regular slow cooker: Sear the brisket and cook the onions and sauce in a large skillet, then layer everything in the slow cooker.
- Flour instead of potato starch: Skip the slurry. Sprinkle 2 tablespoons all-purpose flour over the onions after the tomato paste and stir 1 minute before adding the wine. The cooking liquid will thicken as it cooks.
- Ketchup instead of tomato sauce: Use ketchup in place of the tomato sauce and vinegar, and cut the brown sugar back a little, since ketchup is already sweet.
- Milder garlic: Use about a third of the garlic.
- No wine: Replace it with more beef broth.
- Onion soup mix: Stir a packet into the sauce and leave out the salt.
- Make ahead: Cook, cool about 1 hour, and refrigerate the whole brisket in its liquid overnight. Lift off the fat, slice cold, make the gravy, pour it over the slices in a baking dish, and reheat covered at 325°F for 30 to 40 minutes.
- Keep warm: Lay the slices back over the onions and carrots in the slow cooker, pour the gravy over, cover, and hold on Keep Warm for up to 2 hours.
- Storage: Refrigerate leftovers in the gravy, covered, up to 4 days, or freeze up to 3 months. Thaw overnight in the fridge.
- Reheating: Reheat covered in the gravy in the microwave or a 325°F oven until hot.
How to Trust This Recipe
A few years ago, you could look up a recipe and be sure that at least one person has tried and tested it. But now, with the advent of AI-generated content, all bets are off. So to reassure you that this is real food made by a real person in a real kitchen, I like to take and share a special unedited photo at the end of my posts. This is a photo of the counter in my kitchen where I was preparing my brisket for dinner.
The above photo was taken with ProofMode, which attaches Content Credentials (the C2PA standard) to the image, so anyone can check that it’s a real photo taken by my iPhone on my farm on a particular date and place. You can download the proof files here and learn how to verify them.
If you make this for a holiday, or just for a Sunday when you want the house to smell amazing all afternoon, I’d love to hear how it goes. And save some for leftovers. Greg would want me to tell you that.
Happy cooking!
Love,
Jennifer
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Meet Jennifer
Jennifer cooks and experiments in the kitchen at Maker Farm, where she focuses on simple pantry cooking, homemade staples, and practical recipes that make everyday meals easier. Over the years she has tested many ways to make cooking simpler and more dependable, and shares the methods that work best in her own kitchen, occasionally showing them on her Heart to Home at Maker Farm vlog.