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–+ servings
Instant Pot Mississippi Pot Roast plated on a white plate with sauce on the side
5 from 5 votes

Instant Pot Mississippi Pot Roast

The BEST Instant Pot Mississippi Pot Roast, ready in an hour! This classic pot roast recipe is made with pepperoncinis and a beef broth and butter sauce.
Author Diana
Servings 8 servings
Prep Time 10 minutes
Cook Time 1 hour 30 minutes
Total Time 1 hour 40 minutes

Equipment

Ingredients

  • 2 tablespoons vegetable oil or olive oil
  • 4 pound chuck roast trimmed of excess fat and cut into 6 pieces
  • 8-10 jarred pepperoncini peppers plus ¼ cup liquid from jar
  • ¾ cup beef broth low sodium
  • 1 1-ounce ranch seasoning packet
  • 1 1-ounce dry onion soup mix packet
  • 2 tablespoons butter
  • 2 tablespoons cornstarch
  • 2 tablespoons water

Instructions

  • Heat oil in the instant pot using the SAUTE setting.
  • Add the chuck roast cubes, and sear them from all sides working in batches if needed.
  • Remove the beef onto a plate, and set aside.
  • Deglaze the pot by adding the liquid of the pepperoncini peppers and the beef broth, scraping off any bits stuck to the bottom of the pot.
  • Add the beef back to the pot, sprinkle with ranch seasoning, onion soup mix, and add the pepperoncini peppers. Give everything a good stir.
  • Arrange the butter over the beef (cut the butter into 2-3 pieces).
  • Secure the lid and set the vent to SEALING. Select the PRESSURE COOK/MANUAL setting and set the cooking time for 60 minutes at high pressure. The Instant Pot will take around 7-8 minutes to come to pressure and start cooking. When the cooking program ends, do a natural release for 15 minutes then release the rest of the steam.
  • Carefully remove the lid, and take the beef out to shred. Shred with 2 forks.
  • Meanwhile thicken the sauce. Mix the cornstarch with a little liquid from the instant pot, then stir it in the sauce. Stir until the sauce has thickened, add the shredded beef back in and stir so it’s coated in the sauce.
  • Serve with creamy mashed potatoes, and extra sauce on the side.

Notes

Use a packet of ranch, or two tablespoons of homemade ranch seasoning.

Nutrition

Calories: 487kcal | Carbohydrates: 5g | Protein: 44g | Fat: 33g | Saturated Fat: 16g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 14g | Trans Fat: 2g | Cholesterol: 164mg | Sodium: 603mg | Potassium: 818mg | Fiber: 1g | Sugar: 1g | Vitamin A: 153IU | Vitamin C: 8mg | Calcium: 47mg | Iron: 5mg
Find it online: https://littlesunnykitchen.com/instant-pot-mississippi-pot-roast/