This Dutch Oven Mississippi Pot Roast is made with a chuck roast, ranch dressing mix, au jus gravy mix, butter, and pepperoncini peppers, then slow-cooked in a cast iron Dutch oven until tender and flavorful. It’s an easy, hands-off comfort food recipe that delivers fall-apart beef with bold, savory flavor every time.
Season both sides of the chuck roast with salt and pepper
Heat 5.5 quart Dutch oven over medium-high heat on the stove.
Once hot, add the oil.
Sear each side of roast, 2-3 minutes per side; remove from hot burner.
Sprinkle the au jus mix on top of roast.
Sprinkle the Ranch mix over the top.
Add the peppers and cubed butter.
Pour the pepper brine from the jar over the roast. (see notes)
Cover and bake 8 hours or until the roast reaches 145°F using an instant-read thermometer. (see notes)
Remove from the oven, place on a cutting board covered (with foil or similar) and allow to rest for 10 minutes.
Shred and serve.
Notes
Cook Low and Slow: Pot roast becomes tender with time, not higher heat. Slow cooking allows the connective tissue to break down properly.
Check Early If Needed: Ovens vary, and smaller or well-marbled roasts may finish sooner. If your oven runs hot, begin checking around the 5–6 hour mark.
Avoid a Tough Roast: If the meat isn’t tender, it simply needs more time. Keep cooking until the chuck roast softens and becomes easy to shred.
Control Heat and Salt: Pepperoncini peppers are usually mild, but brands vary. For less heat or salt, use fewer peppers, reduce the brine, or choose unsalted butter.