Mississippi Pot Roast Instant Pot Recipe

Mississippi pot roast in the Instant Pot turns a tough chuck roast into fall-apart, shreddable beef in under two hours, most of it hands-off. Five pantry staples, a good sear, and your pressure cooker do the rest. The payoff is a tangy, buttery gravy that tastes like it simmered all day, without babysitting a slow cooker from morning to dinner. If you have never made it before, this is one of the easiest wins in a home cook’s Instant Pot rotation, and it holds up just as well for a Tuesday dinner as it does for a crowd.

How Long Does Mississippi Pot Roast Instant Pot Take?

A 3 to 4-pound chuck roast needs about 55 to 60 minutes on high pressure, plus a 10 to 15-minute natural release. Add the time to sear the meat and let the pot come to pressure, and you are usually eating within 90 minutes. That is roughly a third of the time an oven version takes, and about a sixth of the time for a slow cooker.

What Is Mississippi Pot Roast Instant Pot, and Why Is It Called That?

Mississippi pot roast gets its name from where it was invented, not from any Mississippi-grown ingredient. Home cook Robin Chapman of Ripley, Mississippi, adapted a spicier family roast recipe in the 1990s to make it milder for her kids, swapping in ranch seasoning, au jus mix, butter, and pepperoncini peppers. She just called it “roast.” A friend later added it to a church cookbook under the name “roast beef,” and it stayed a regional favorite for years before a food blogger tried it in 2011 and posted it online as Mississippi Roast.

From there, it took off. The recipe has been pinned more than a million times on Pinterest, spread widely on Reddit’s cooking communities, and was eventually profiled by The New York Times, which called it the roast that owns the internet. The Instant Pot version came later, as pressure cookers became a kitchen staple and cooks looked for ways to cut the original’s long braise time without losing the tenderness.

Despite the pepperoncini, the finished dish is not spicy. The peppers add tang and a mild background warmth rather than heat, which is part of why the recipe works so well for families and picky eaters.

Ingredients for Mississippi Pot Roast in the Instant Pot

The classic version uses five main ingredients beyond oil and water:

• Chuck roast (3 to 4 pounds, boneless), trimmed of large fat pieces
• Ranch dressing and seasoning mix (one 1-ounce packet)
• Au jus gravy mix (one 1-ounce packet, or brown gravy mix as a substitute)
• Pepperoncini peppers (6 to 10, plus a splash of the jar’s brine)
• Butter (4 to 8 tablespoons, unsalted)

A well-marbled chuck roast matters more than any other choice here. The fat and connective tissue running through chuck break down under pressure, which is what turns a cheap, tough cut into something you can shred with a fork. Leaner cuts like sirloin will cook faster but come out drier and less flavorful, so it is worth resisting the urge to trim too aggressively.

How to Make Mississippi Pot Roast in the Instant Pot

1. Sear the roast. Set the Instant Pot to Sauté, add a tablespoon of oil, and brown the chuck roast on all sides, about 4 to 5 minutes per side. Searing is optional but adds real depth through the Maillard reaction, the browning that builds savory flavor compounds. Remove the roast to a plate.
2. Deglaze the pot. Pour in about a quarter to half cup of water or beef broth and scrape up every browned bit stuck to the bottom with a wooden spoon. This step is not optional. Skipping it is the single most common reason people get the dreaded Burn notice, since the leftover seasoning packets and gravy mix contain thickeners that scorch easily if fond is left behind.
3. Layer the seasonings. Return the roast to the pot. Sprinkle the ranch mix and au jus mix evenly over the top without stirring them into the liquid. Add the butter, the pepperoncini peppers, and a splash of the pepperoncini brine.
4. Pressure cook. Lock the lid, set the valve to sealing, and cook on high pressure for 55 to 60 minutes for a 3 to 4 pound roast. Add 10 to 15 minutes if your roast runs closer to 4.5 pounds.
5. Release and shred. Let the pressure release naturally for 10 to 15 minutes before doing a quick release for any remainder. Check that the center of the roast reads around 195°F for the most tender, shreddable texture, then pull the beef apart with two forks directly in the pot.
6. Thicken the gravy, if you like it thicker. Whisk 1 to 2 tablespoons of cornstarch with an equal amount of cold water, stir it into the hot liquid, and simmer on Sauté for a couple of minutes until it thickens into a glossy gravy that clings to the meat.

Tips for the Best Mississippi Pot Roast Instant Pot

A few small habits separate a good Mississippi pot roast instant pot dinner from a great one:

• Do not stir the seasoning packets into the liquid. Letting them sit on top of the roast keeps the thickeners away from the hot base of the pot, which is one more layer of protection against a burn warning.
• Watch the salt. Ranch and au jus packets are already salty, so use unsalted butter and low-sodium broth, and taste before adding more at the end.
• Cut a large roast into two or three pieces so it cooks evenly and fits the pot without crowding.
• If the meat comes out tough, it needs more time, not less. Chuck roast has a lot of connective tissue, and undercooking is the usual culprit behind a chewy result.
• Frozen roast works in a pinch as long as it is already cut into smaller pieces before it goes in, since a single large frozen block will not cook through evenly.

What to Serve with Mississippi Pot Roast Instant Pot

The rich, tangy gravy practically asks to be spooned over something that can soak it up. Mashed potatoes are the classic pairing, but egg noodles, rice, or cauliflower rice for a lower-carb option all work well. Shredded and piled onto a toasted bun with a few extra pepperoncini, it also makes a satisfying sandwich, which is how the original recipe’s creator liked to serve it herself.

How to Store and Reheat Mississippi Pot Roast Instant Pot Leftovers

Cooked Mississippi pot roast keeps in an airtight container in the refrigerator for 3 to 4 days, and it freezes well for up to 2 to 3 months. Reheat gently on the stovetop or in the microwave with a splash of the leftover gravy to keep the meat from drying out. Many home cooks find the flavor actually improves by the second day, once the beef has had more time to soak in the gravy.

Frequently Asked Questions

Why is it called Mississippi pot roast?

It is named for its origin, not an ingredient. Home cook Robin Chapman of Ripley, Mississippi, created the recipe in the 1990s, and it later spread online under the Mississippi Roast name after a blogger shared it in 2011.

Can I make Mississippi pot roast in a slow cooker or oven instead?

Yes, both work well. For a slow cooker, follow the same layering and cook on low for 8 hours or high for 4 hours. For the oven, use a covered Dutch oven at 350°F for about 3 hours, checking for fork-tenderness near the end.

Is Mississippi pot roast spicy?

Not really. The pepperoncini peppers add tang and a mild warmth rather than heat, so the finished dish is family-friendly. Use fewer peppers for even less kick, or add extra brine or hot sauce if you want more.

How do I avoid the Instant Pot Burn notice with this recipe?

Deglaze thoroughly after searing so no browned bits remain stuck to the bottom, and avoid stirring the seasoning packets into the liquid before cooking. Both steps keep the thickeners from settling and scorching against the hot pot base.

How do I thicken the gravy?

Whisk equal parts cornstarch and cold water into a slurry, stir it into the hot cooking liquid after the beef is removed, and simmer on Sauté mode for a couple of minutes until it reaches gravy consistency.

Can I add vegetables to the pot?

Yes, though timing matters. Potatoes and carrots added at the start can turn mushy over a 55-minute cook, so most cooks add them after the meat finishes, then pressure cook for another 2 to 3 minutes just to warm them through and pick up some of the gravy’s flavor.

What can I use instead of au jus gravy mix?

Brown gravy mix is the most common substitute and works nearly the same way. In a pinch, a packet of onion soup mix or a homemade blend of beef bouillon, garlic powder, and onion powder gets you close, though the flavor will be a little less rich than the classic combination.

Once you have made Mississippi pot roast in the Instant Pot a time or two, it tends to become a permanent fixture in the weeknight rotation. It is hard to beat five ingredients and one pot for a dinner that tastes this rich.