This Mississippi-style brisket delivers tender results without the long wait of traditional methods. The Instant Pot transforms tough brisket into fall-apart meat with minimal effort.
The secret lies in the pepperoncini peppers and their briny juice, which infuse the meat with tangy depth. A simple spice blend enhances the natural beef flavors without overpowering them.
After pressure cooking, the brisket emerges incredibly tender and juicy, ready to be shredded or sliced. The liquid in the pot becomes a rich, flavorful sauce that pairs perfectly with the meat.
Serve this with mashed potatoes or crusty bread to soak up every drop of the savory juices. The entire process takes a fraction of the time of oven-braising.
Ingredients for Instant Pot Brisket
Flat-cut brisket plus tangy pepperoncini make this dish unforgettable. Simple spices, big flavor.
| Ingredient | Amount | Notes |
|---|---|---|
| Beef Brisket 🥩 | 3 lb | Flat cut preferred, trimmed |
| Pepperoncini Peppers 🌶️ | ½ cup | Sliced, plus juice reserved |
| Pepperoncini Juice 💧 | ½ cup | From the jar |
| Beef Broth 🥣 | 1 cup | Low-sodium preferred |
| Olive Oil 🫒 | 2 tbsp | For searing brisket |
| Garlic Cloves 🧄 | 4 cloves | Minced for depth |
| Onion 🧅 | 1 whole | Yellow or white, diced |
| Kosher Salt 🧂 | 1 ½ tsp | Diamond Crystal preferred |
| Black Pepper 🌶️ | 1 tsp | Freshly ground |
| Dried Oregano 🌿 | 1 tsp | Mediterranean variety |
| Smoked Paprika 🌶️ | 1 tsp | Adds subtle smokiness |
| Brown Sugar 🍚 | 2 tbsp | Light or dark |
| Unsalted Butter 🧈 | 2 tbsp | For richness in sauce |
| All-Purpose Flour 🌾 | 2 tbsp | Thickens the sauce |
The brisket is non-negotiable here. Flat cut stays tender under pressure—point cut can get dry. Look for good marbling at Costco or your butcher (they’ll often trim it for free). The pepperoncini? Mezzetta brand has the right tangy-sweet balance. Don’t skip the juice—it’s doing heavy lifting for flavor. Buy a 16-oz jar and use half the liquid.
No flat cut? Chuck roast at the same weight works in a pinch. Short on pepperoncini juice? Substitute with equal parts apple cider vinegar and a pinch of sugar. Brown sugar can be swapped for honey or maple syrup. The flour is just for thickening—cornstarch at half the amount if you’re avoiding gluten. Beef broth can be homemade or Better Than Bouillon paste.
Brisket freezes beautifully for up to 6 months. Slice before freezing for easy portions. The sauce thickens more as it cools—reheat gently with a splash of broth. Leftovers keep 4-5 days in the fridge. Always store the meat submerged in the juices to prevent drying out.
Why You’ll Love This Recipe
- Set It & Forget: I toss everything in the Instant Pot, press a button, and walk away—no babysitting required.
- Tangy & Tender: The pepperoncini juice works magic, turning the brisket fall-apart tender with just the right zing.
- Feeds the Crew: Between us, this makes enough for Sunday dinner plus leftovers for sandwiches all week.
- Budget-Friendly Luxury: Honestly, brisket feels fancy but costs less than takeout when stretched over multiple meals.
Step-by-Step Instructions for Mississippi-Style Instant Pot Brisket
This pressure cooker method guarantees melt-in-your-mouth tenderness with bold pepperoncini flavor.
Step 1: Season and Sear the Beef Brisket
Pat the 3 lb Beef Brisket dry with paper towels, then rub it evenly with 1.5 tsp Kosher Salt, 1 tsp Black Pepper, 1 tsp Dried Oregano, and 1 tsp Smoked Paprika. I press the seasoning into the meat to ensure every bite is well-flavored.
Heat the 2 tbsp Olive Oil in the Instant Pot using the Sauté function on high heat. When the oil shimmers, sear the brisket for 4-5 minutes per side until deeply browned. This creates a flavorful crust that will translate into rich, complex notes in the final dish.
Step 2: Sauté Aromatics and Build the Braising Liquid
Remove the brisket and set it aside. In the same pot, add the diced 1 whole Onion and minced 4 cloves Garlic Cloves. Sauté for 2-3 minutes until the onion softens and becomes translucent.
Pour in the 1 cup Beef Broth, 0.5 cup Pepperoncini Juice, and 2 tbsp Brown Sugar. Stir well to deglaze the pot, scraping up all the browned bits from the bottom. These bits contain concentrated flavor that will enrich the sauce.
Step 3: Pressure Cook to Tender Perfection
Return the brisket to the pot along with the 0.5 cup Pepperoncini Peppers. Secure the lid and set the Instant Pot to cook on high pressure for 60 minutes. It will take approximately 10-15 minutes to come to pressure before the cooking time begins.
Once the cooking cycle completes, allow the pressure to release naturally for 15 minutes, then quick-release any remaining pressure. This gradual release helps the brisket retain moisture and tenderness.
Step 4: Thicken the Sauce and Finish
Carefully remove the brisket to a cutting board. In a small bowl, whisk together the 2 tbsp All-Purpose Flour and 2 tbsp Unsalted Butter to form a smooth paste. Switch the Instant Pot back to the Sauté function on normal heat.
Stir the butter-flour mixture into the cooking liquid and simmer for 3-4 minutes until the sauce thickens enough to coat the back of a spoon. Slice the brisket against the grain and return it to the pot to coat in the sauce before serving.
Pro Tips For Making Instant Pot Brisket
- Sear the Brisket: I learned this the hard way—browning the brisket in olive oil before pressure cooking adds depth of flavor that skipping this step just can’t match. Use 2 tablespoons of oil and sear each side for 3-4 minutes until deeply browned.
- Use Enough Liquid: After burning a batch, I finally figured out that the Instant Pot needs at least 1 cup of liquid (beef broth works) to properly pressurize. The pepperoncini juice counts toward this, but don’t rely on it alone.
- Slice Against the Grain: Sounds weird, but it works: Slicing the cooked brisket against the grain makes it tender instead of chewy. Look for the natural lines in the meat and cut perpendicular to them.
- Add Peppers Last: Toss in the pepperoncini peppers after pressure cooking to keep their texture and tang. Adding them at the start turns them to mush—I skip this when I’m lazy, but the dish is noticeably better when I don’t.
Essential Equipment for Perfect Results
Instant Pot Essentials
You’ll need a 6-quart or 8-quart Instant Pot—I use my Instant Pot Duo Crisp for this recipe. The larger size gives the brisket space to cook evenly without crowding. Always check your model’s manual for pressure cooking guidelines.
Searing Success Tools
A pair of long tongs helps flip the brisket safely during searing. I also keep a wooden spoon nearby to scrape up browned bits. These fundamental tools make the process smoother and prevent burns. 💡
Sauce Thickening Helpers
A whisk is essential for blending the butter and flour into a smooth paste. I prefer a small silicone whisk to avoid scratching the pot’s non-stick surface. This ensures your sauce thickens without lumps.
Measuring Must-Haves
Accurate measurements matter, so keep measuring cups and spoons handy. I use OXO Good Grips for their durability and clear markings. Precise amounts guarantee the best flavor balance in your sauce.
Resting and Serving
A cutting board with a groove around the edge catches juices while slicing. I also recommend a sharp chef’s knife—Wüsthof is my go-to brand—for clean, even slices. Resting the brisket ensures it stays tender.
Optional Upgrades
For extra convenience, a fat separator helps skim excess fat from the sauce. A meat thermometer confirms doneness if you’re unsure. These aren’t required but can elevate your results. ✨
Nutrition Facts
Frequently Asked Questions
What size Instant Pot do I need?
A 6-quart works for 3 lb brisket, but 8-quart gives more room. Avoid smaller models as they may not fit the meat properly.
Can I use frozen brisket?
Thaw completely first for even cooking. Frozen meat won’t sear properly and may cook unevenly under pressure. Plan for 24 hours in the fridge.
Why slice against the grain?
Shortens muscle fibers for maximum tenderness. Look for the lines in the meat and cut perpendicular to them. This makes every bite easier to chew.
Can I skip the searing step?
Technically yes, but searing adds deep flavor. The browned crust (Maillard reaction) creates complex tastes that pressure cooking alone can’t replicate.
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