Probably the number one, most flavorful pot roasts of all time is the Instant Pot Mississippi Pot Roast. With butter, ranch, au jus, pepperoncinis, and a nice chuck roast, this is an absolute classic pot roast. This Pressure Cooker Mississippi Pot Roast is faster than the oven or crock pot, and has incredible flavor.
Instant Pot Mississippi Pot Roast
It’s been over a year now since I made this Instant Pot Mississippi Pot Roast for the first time, as Christmas dinner for the family. We ran out! Luckily there were plenty of other things to eat, but everyone wanted more Instant Pot Mississippi Pot Roast!
I will be making this Instant Pot Mississippi Pot Roast again this year, because the guys loved it so much. This year is going to be a double batch! I will use a 5 to 6 pound chuck roast. I hope it’s enough.
Cooking a pot roast in your electric pressure cooker is a great time saver. You get a tender, flavorful pot roast in a little over an hour, versus the 3 to 4 hours it normally takes in the oven, or 8 hours in the crock pot. And it tastes just as good! The key to the best flavor, in my opinion, is to brown it at least 5 full minutes on each side before pressure cooking it. You don’t have to, but it adds great flavor, and cuts down on the pressure cooking time. I put my own little spin on it, and added onion, which I think add so much more flavor to the recipe.
You can make this a “Dump and Go” recipe simply by adding everything to the pot in order (except for the flour/butter for the gravy at the end) and cooking on High pressure for about 80 minutes, with a 15 minute natural release. I still recommend slicing the roast first, if you can. If you have a roast that is over 4lbs, and can’t slice it, then increase the cook time to 90 minutes.
You can buy the pepperoncinis whole or sliced. I use whole ones so Paul can pick them out, lol! He just passes them over to my plate. They aren’t hot, and add a salty and tangy flavor. Paul likes the flavor the juice adds, but not the whole pepperoncinis so much.
Robin Chapman, the original creator of the Mississippi Pot Roast, says that this is great in sandwiches, so that’s what we are going to try next!
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Instant Pot Mississippi Pot Roast with butter, ranch, au jus, pepperoncinis, and a nice chuck roast, this is an absolute classic pot roast. You can make it so much faster in your pressure cooker!
- 3-6 lbs Chuck Roast, cut into 1 lb chunks of even thickness
- 3 Tbsp Vegetable Oil
- 1 small Onion, chopped (optional, if you don't use the onion, omit the veg oil, too)
- 9 Pepperoncinis, whole or chopped
- 1/2 cup Pepperoncini Juice from the jar
- 3/4 cup Beef Broth, low sodium (or just water)
- 1 Packet of dry Ranch Dressing
- 1 Packet of Au Jus (or packet of brown gravy mix)
- 1/2 Stick of Butter, unsalted
- 3 Tbsp Flour
- 3 Tbsp Softened Butter, unsalted
Turn pot on Sauté mode (normal). When the display reads "Hot" add the oil.
When oil heats up, place meat in one layer into the pot and don't move it for 5 full minutes (Don't brown for less than that).
Turn meat over and cook for another 5 full minutes.
Remove the meat to foil or a dish you can cover. Wrap it to keep it warm.
Deglaze the pot: Add onion to pot and stir, add a bit of the beef broth or a small amount of water if there is not enough moisture to loosen the brown bits from the bottom of the pot. Stir, scraping the bottom of the pot until the bottom is free of the stuck on brown bits.
Add the pepperoncinis and their juice, beef broth, au jus and ranch packets, and butter. Stir to combine.
Turn off the sauté mode.
Add the meat back into the pot.
Close lid and set knob to Sealing position.
Set to Pressure Cook/Manual for 60 minutes.
When cooking cycle ends, let it sit and count up to 15 min (15 minute natural pressure release, or NPR).
After the 15 minute NPR, turn off IP, and manually release the remaining pressure until the pin drops, and open the lid to a delicious pot roast!
Remove the pot roast to a plate and cover.
Turn the Sauté function back on.
Mix the flour and butter together until well combined.
When the liquid is starting to simmer, add the mixture to the pot, stirring well until thickened. Then turn off the pot and add the roast back in.
Enjoy with mashed or baked potatoes, or over rice.
Alternate "Dump and Go" Method:
Add the roast to the pot (still cut it), then the rest of the ingredients in order (minus the flour and softened butter), and cook on High Pressure for 80 minutes. 15 minute natural release.
Adapted from original recipe by Robin Chapman.
Resources to make this recipe and more
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