Instant Pot Mississippi Roast

Ingredients (10)

• 3 lb beef chuck pot roast
• 1/2 tsp salt
• 1/2 tsp black pepper
• 2 tbsp vegetable oil
• 1 medium yellow onion
• 1/2 cup beef broth
• 1/4 cup pepperoncini juice
• 1/4 cup ranch seasoning
• 8 tbsp butter
• 8 whole pepperoncinis