I use an oven 350* for approximately 5 hours depending on the size. Make sure it's covered & don't let the juice get too low. I season with salt, pepper, garlic, add 1 envelope of Lipton's Onion Soup Mix, add water almost as much as the height of the roast since during cooking, it evaporates. You'll have enough juices to make a nice brown gravy. Good luck !