Set out a scale and the equipment for Sunday roast beef. Heat to 375°F / 191°C and give it 5 minutes so the surface is actually hot. Weigh beef sirloin, potato, carrot, prepared horseradish, low-sodium beef broth, all-purpose flour, rosemary, kosher salt, olive oil. Sunday roast beef is cooked in Sunday as its own plate, not as a copy of a restaurant menu. Roast the beef, rest it, and stir a spoon of flour into the pan juices with broth for a thin gravy. Amounts are for 4 from foods this library can count.