When selecting a rolled rump roast, look for a bright red to dark red color and minimum amount of marbling.
Roasts are easier to carve when allowed to stand 15 to 20 minutes after being removed from the oven. Because the beef will continue to cook during this stand time, remove it from the oven when the thermometer reads 5º lower than the doneness temperature.
Use other special cutting patterns for the potatoes in this recipe. For Fan-Tan Potatoes, cut each peeled potato lengthwise into 1/8-inch slices, being careful not to cut completely through one end, and spread slices to resemble fans. For Crosscut Potatoes, cut each peeled potato diagonally into 1/2-inch slices, being careful not to cut completely through bottom; repeat in opposite direction.