Slow Cooker Mississippi Coke Roast

  Ingredients 2 Tbsp oil 3-4 lb Chuck Roast 1 large onion, sliced 1 packet Ranch Dressing Powder 1 packet Au Jus Gravy Mix 1 cup coca cola 5 or 6 Pepperoncini Peppers from a jar 4 Tbsp butter For Gravy 2 Tbsp cornstarch 2 Tbsp milk Click here for directons