Preheat oven to 325 degrees.
Heat a cast iron skillet or Dutch oven over high heat with olive oil. Season roast on all sides with spices. Place in skillet and sear on all sides until well browned.
3-4 # boneless chuck roast, 2 tbsp. olive oil, 2 tsp. salt, 1 tsp. pepper, 1/2 tsp. onion powder, 1/2 tsp. garlic powder
Place roast in roasting pan (or leave in Dutch oven) and top with onion soup mix, being sure to press it into the roast. Top evenly with apple cider vinegar.
1 envelope dry onion soup mix, 3 tbsp. apple cider vinegar
Pour beef broth around roast and fill in pan with cut carrots and celery. Cover pan tightly. Cook 3 1/2-4 hours until fork tender.
1-1/2 cups beef broth
Remove from oven and place vegetables in a serving bowl and the roast on a serving plate. Cover with foil and allow it to rest while making the gravy.
4-5 whole carrots, 4-5 celery stalks