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white plate of mississippi roast with au jus in a white bowl
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4.72 from 14 votes

Instant Pot Mississippi Pot Roast Recipe

Learn how to make rump roast in the Instant Pot following my easy Instant Pot Mississippi Pot Roast recipe! It is delicious, simple, and ready in just a little over 1 hour.
Prep Time5 minutes
Cook Time1 hour
Pressure Release Time15 minutes
Total Time1 hour 20 minutes
Course: Main Course
Cuisine: American
Keyword: Instant Pot Mississippi Pot Roast, Instant Pot Mississippi Roast, Mississippi Roast Recipe
Servings: 8 people
Calories: 444kcal

Equipment

  • 6 qt. Instant Pot

Ingredients

  • 4 pound rump roast or chuck roast
  • 16 ounce jar pepperoncini peppers
  • 1 stick unsalted butter
  • 1 package dry ranch seasoning
  • 1 package dry au jus gravy

See our Beef Temperature Chart for helpful tips on cooking any cut of beef!

Instructions

  • Add your roast, pepperoncini peppers, butter, ranch seasoning, and au jus gravy to the Instant Pot. Secure the lid and cook on high pressure for 60 minutes.
    4 pound rump roast, 16 ounce jar pepperoncini peppers, 1 stick unsalted butter, 1 package dry ranch seasoning, 1 package dry au jus gravy
    instant pot mississippi pot roast ingredients in the instant pot
  • When 60 minutes is up, allow the Instant Pot to naturally release pressure for 15 minutes. After 15 minutes, carefully release any remaining pressure, and remove the lid.
    cooked mississippi roast in the instant pot with pepperoncini peppers
  • Shred the roast using two forks. Serve with any remaining liquid at the bottom of the pot, and enjoy!
    instant pot mississippi pot roast on a white plate with with a bowl of au jus

Video

Notes

  • You can use a packet of brown gravy mix instead of au jus if desired. This will create a thicker gravy.
  • Rump roast is slightly more tender than chuck roast, so I recommend giving it a try. However, you can use either rump roast or chuck roast for this dish.
  • To make gravy out of the Instant Pot roast drippings, measure out a cup of the drippings from the pot. Whisk it together with 2 Tablespoons cornstarch mixed with ¼ cup water, then simmer in the Instant Pot on saute mode for several minutes until thickened to your liking.

Nutrition

Serving: 1serving | Calories: 444kcal | Carbohydrates: 5g | Protein: 51g | Fat: 23g | Saturated Fat: 11g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 8g | Trans Fat: 0.5g | Cholesterol: 171mg | Sodium: 399mg | Potassium: 922mg | Fiber: 2g | Sugar: 1g | Vitamin A: 546IU | Vitamin C: 47mg | Calcium: 54mg | Iron: 5mg