Mouthwatering Mississippi Pot Roast

Ingredients

• 1 tablespoon olive oil
• 1/2 teaspoon black pepper
• 3.5 lbs chuck roast
• 1 medium onion, chopped
• 8 pepperoncini peppers
• 1/2 teaspoon salt
• 1 packet dry au jus gravy mix
• 1/4 cup clarified butter
• 1/2 cup pepperoncini juice
• 2 cloves garlic, minced
• 1 packet ranch dressing mix