Traeger Smoked Brisket Flat Recipe

If a whole brisket feels like a little bit too much, a smoked brisket flat is a great place to start. It’s cheaper, it cooks faster, and it fits on any pellet grill you’ve got. I’ll be honest, I’m not the biggest flat guy in my house. My family loves it, though, and it’s the brisket I make when I want the whole cook done in one day with no alarm going off at 3 a.m. I trim it even, hit it with two rubs, run the Traeger at 225°F, wrap it in butcher paper around 160°F, and pull it when it’s probe tender.

The hard part with a flat is that it doesn’t have the fatty point to protect it. Trim it uneven or pull it early and it dries out on you. Both of those are easy to avoid once you know what to look for.

Total time: about 9 to 11 hours (30 minutes prep, 7 to 9 hours on the smoker, 1 to 2 hours rest) · Serves 6 to 8

Here’s what I’ll walk you through:

• How to trim a brisket flat to one even thickness so the whole thing cooks evenly
• The binder and two-rub combo I use, and what to grab if you don’t have my rubs
• My three picks for pellets or wood chunks
• When to wrap, and how to tell when a flat is probe tender
• Resting it, saving the juice, and slicing it across the grain

Let’s get started!

Why Make a Smoked Brisket Flat?

A whole packer brisket is a big piece of meat and a long night. The flat is the leaner half of that brisket, and on its own it gives you the same bark, the same smoke ring and the same Sunday-dinner feel on a much more manageable scale. If you’ve been nervous about brisket, this is the one I’d hand you first.

• It’s a one-day cook. Plan on 7 to 9 hours at 225°F, plus the rest. Start it in the morning and you’re slicing by dinner.
• It costs less and it’s easy to find. Most grocery store meat counters carry flats, and you’re not paying for a pile of fat you’re going to trim off anyway.
• It slices clean. An evenly trimmed flat gives you nice uniform slices for a platter, sandwiches, or leftovers the next day.

Ingredients

Meat

• 1 brisket flat, about 5 to 7 lbs

Binder & Supplies

• Yellow mustard, for a thin binder coat
• Pink butcher paper, for the wrap
• A spray bottle of water (optional, makes the paper easier to fold)

Rubs

• Rock’s Anytime (salt, pepper and garlic), or any SPG rub
• Rock’s Coffee Rub, or any coffee-based brisket rub

A quick note on the rubs: those two are mine, from Rocks BBQ. You don’t need them to make this. Any good salt, pepper and garlic rub plus a coffee rub gets you the same idea. Use enough of each for a nice even coat on every side.

Best Wood Pellets for Smoked Brisket Flat

Brisket is a long cook, so the wood you pick actually shows up in the flavor. Here’s what I’d reach for, in order.

1. Traeger Signature Series. This is the bag I keep around more than any other. It’s a hickory, maple and cherry blend, so you get a solid smoke without any one wood taking over. It’s a safe bet for your first flat.
2. Oak. Oak is the classic brisket wood for a reason. It burns clean and steady and lets the rub be the star. If you’re cooking on charcoal or an offset, post oak chunks are the way to go.
3. Hickory. Go here if you want the smoke to be the first thing people taste. It’s bolder, and it plays really well with a pepper-heavy rub, because that smoke loves to stick to the pepper.

Step 1: Trim the Flat to One Even Thickness (20 minutes)

• Start by taking off all the hard fat. That’s the white, waxy stuff that won’t render down no matter how long you cook it.
• Trim the fat cap down to about ¼ inch. That’s the fat that melts into the meat and helps keep it from drying out.
• Now look at the whole flat. The goal is one even thickness. An even flat cooks to one even temperature. If one end is thin, it’ll be dry before the thick part is ever tender.
• Take down any high spots, then square up the edges. Those thin corners will burn before the middle is done, so get them off.
• Go slow and make little cuts. You can always take more off. You can’t put it back on.
• I’ll admit my trim in the video is on the aggressive side. That’s fine. Less meat to heat means it cooks a little faster. How deep you go is personal preference.
• Grab any last bit of silver skin, then give it one final look: hard fat gone, even surface, about a quarter inch on top.
• Don’t toss the trimmings. The lean pieces make a great burger grind, and the fat can be melted down into tallow.

Step 2: Binder and Seasoning (10 minutes)

• Fire up your pellet grill to 225°F and turn on Super Smoke if your grill has it. It’ll be ready by the time you’re done seasoning.
• Put a thin coat of yellow mustard on every side. It’s just a binder. It helps the rub stick, and you won’t taste it.
• Season with the salt, pepper and garlic rub first (for me that’s Rock’s Anytime). That’s your base.
• Then go over the top with the coffee rub. It’s a darker rub, so it helps the bark form, and that bark is what protects the meat from drying out over a long cook.
• Shake it on from up high so you get a nice even coat all the way across.
• Pat it in. Don’t rub it. Rubbing just pushes the seasoning around and it won’t stick where you want it.

Step 3: Smoke at 225°F (5 to 6 hours)

• Put the flat on the grill at 225°F with Super Smoke on.
• Slide a probe into the thickest part of the flat so you can keep an eye on it without opening the lid.
• Let it roll until the internal temp hits about 160°F. On my flat that’s usually 5 to 6 hours.
• Keep the lid closed as much as you can. Every time you open it you’re letting heat and smoke out.

Step 4: Wrap in Butcher Paper at 160°F (10 minutes)

• Once it’s around 160°F and the bark looks set, pull it off and wrap it tight in pink butcher paper.
• A quick spray of water on the paper makes it easier to fold. It’s an extra step, but I think it’s worth it.
• You can use foil in a pinch, but foil steams the brisket more. Butcher paper lets it breathe a little, so you keep a better bark.
• Put the probe back in through the paper, in the same spot, and get it back on the smoker.

Step 5: Cook to Probe Tender (2 to 3 hours)

• Keep it going at 225°F until it’s probe tender. For most flats that happens somewhere around 203°F.
• I start checking at about 200°F. Slide a probe into the thickest part. When it goes in with almost no resistance, like going into soft butter, it’s ready.
• Go by the feel, not the clock. Every flat is a little different, so the number on the timer means a lot less than what the probe tells you.

Step 6: Rest It, Still Wrapped (1 to 2 hours)

• Don’t skip this. This is the step that decides whether your flat is juicy or dry.
• Let it rest at least 1 hour, still wrapped in the paper. I like to go closer to 2 hours when I can.
• While it rests, the juices move back out through the whole flat instead of running all over your cutting board the second you slice it.
• When you unwrap it, save any juice in the paper. You’ll use it in a minute.

Step 7: Slice Across the Grain (10 minutes)

• Find the grain first. Those are the long lines running through the meat. You want to cut across them, not with them.
• Slice it about ¼ inch thick, all the way across until the whole flat is sliced up.
• Use a sharp slicing knife. Mine was a little dull in the video and you can tell. It still sliced up nice and ate great, but a sharp knife makes it a lot easier.
• Drizzle those saved juices back over the top before you serve it.
• Go ahead and grab a piece with some of that board juice before you call everybody in. It’s the cook’s reward.

Smoked Brisket Flat Recipe Summary

• Trim the hard fat, leave about ¼ inch on the fat cap, and trim the flat to one even thickness
• Square up the edges so there are no thin corners to burn
• Fire up the pellet grill to 225°F with Super Smoke on
• Thin coat of yellow mustard, then a salt, pepper and garlic rub, then a coffee rub
• Pat the rub in, don’t rub it
• Smoke at 225°F with a probe in the thickest part until about 160°F (5 to 6 hours)
• Wrap tight in butcher paper and put it back on
• Cook to probe tender, around 203°F (2 to 3 more hours)
• Rest at least 1 hour, still wrapped
• Slice across the grain about ¼ inch thick and drizzle the juices over the top

Pro Tips

Trim for even, not for pretty. The whole reason a flat cooks evenly is that it’s the same thickness end to end. Don’t worry about making it look perfect. Worry about making it uniform. If you have to pick between a pretty trim and an even one, go even every time.

Start checking at 200°F, then trust the probe. Don’t pull it just because it hit a number or because the clock says it should be done. When the probe slides in like butter all over the flat, that’s your signal.

Save every bit of juice. The juice in the butcher paper and on the board is pure flavor. Pour it back over the sliced flat right before serving. It keeps the slices moist, especially if they’re going to sit out on a platter for a while.

Common Questions

How long does it take to smoke a brisket flat at 225°F?
Plan on about 7 to 9 hours on the smoker for a 5 to 7 pound flat. That’s roughly 5 to 6 hours to hit 160°F, then another 2 to 3 hours wrapped until it’s probe tender. Add at least an hour for the rest. Thickness matters more than weight, so use the probe, not the clock.

Should I wrap a brisket flat in butcher paper or foil?
I use butcher paper. Foil works, but it holds in more steam, and that softens the bark you just spent six hours building. Butcher paper lets a little moisture out, so you keep a better crust.

What temperature is a brisket flat done?
Most flats are probe tender somewhere around 203°F. I start checking at 200°F. The real test is feel. When a probe slides into the thickest part with almost no resistance, it’s done.

Why did my brisket flat come out dry?
Usually it’s one of three things. It came off the smoker too early, it didn’t rest long enough, or it was trimmed uneven and the thin end overcooked. An even trim and a full one-hour rest fix most dry flats.

What if my brisket comes out tough?
Never throw away a brisket. Chop it up for brisket tacos with some BBQ sauce, or freeze it and throw it in chili later. My Mama Jan’s Brisket Chili is a great home for it. Brisket takes practice, and you’ll get a little better every time you cook one.

Final Thoughts

A brisket flat is the easiest way I know to get real brisket on your table without committing to an overnight cook. You get the bark, you get the smoke ring, and you get those clean slices that make everybody at the table go quiet for a minute. My family asks for this one all the time, and it works just as well on a weekend as it does when you want to feel like you’re eating something special in the middle of the week.

When you’re ready for the whole packer, I’ve got you covered with my Anytime Coffee Brisket and my low and slow brisket with an overnight rest and next-day reheat.

I’m not here to tell you how to do it. I’m just showing you how I do it. Trim it your way, pick your pellets, and use whatever rub you love.

Ready to try it? Fire up the smoker, and let me know how your flat turns out in the comments.