Not that Cook's Country recipes are the do-all, say-all, but this one looks pretty good from a newsletter, February, 2008...Chicago-Style. Some Cook's Country Notes: Don't use a rump roast. It proved too tough and the tasters preferred the meatiness and tenderness of a top sirloin roast. Elevating the roast on a rack kept it out of the jus and kept the meat from becoming too mushy. To get the browned crust desired, the roast was browned in a skillet before adding the "rub".