Analyse seems to have been the more common spelling in 17th- and 18th-century English, but many of the great dictionaries of that time â John Kersey's of 1702, Nathan Bailey's of 1721 and Samuel Johnson's of 1755 â prefer analyze. In Canada, -yze prevails, just as in the US.
Oven Cooking. To slow-cook a rump roast in the oven, set the oven to 250 F. At this temperature, the roast will cook in about four hours, depending on the size of your roast. Place the roast in an oven-proof pot or Dutch oven with a lid. Add 1/2 to one cup of broth or red wine, so that the roast is partially covered.
Marinated Rump Roast. 1  1. Trim the roast of extra fat. 2  2. Place the roast in a large food storage bag. 3  3. Seal the bag and allow the meat to marinate for 5 hours or overnight.  4. When you're ready to cook the roast, preheat the oven to 325 degrees Fahrenheit (162 degrees 1  Celsius). 5. Place the roast in a dutch oven or roasting  pan.