Tender Garlic Herb Roast Beef with Sweet Caramelized Onions Step-by-step instructions

Before you start

Before beginning, retrieve the beef roast from the refrigerator about 30 minutes prior to cooking to take the chill off, ensuring even cooking throughout.

Thoroughly pat the exterior of the meat dry with paper towels to help the herb butter adhere. Peel and slice the yellow onions into thick rings, then scatter them evenly across the bottom of your roasting pan to form a sturdy base for the beef.

Instructions

Herb Butter Preparation and Coating

1. 1Prepare the Onions and Pan
   Scatter the sliced yellow onions evenly across the bottom of a dark roasting pan. This creates a natural rack for the beef and prevents it from sticking to the bottom of the pan.
   Look for The onions should form an even layer.
   Tip Slice the onions thickly so they do not burn.
2. 2Mix and Apply Herb Butter
   In a small bowl, combine the softened unsalted butter, minced garlic, and chopped rosemary. Stir until a smooth paste forms. Rub the herb butter mixture generously over all sides of the beef roast, then place the beef directly on top of the onions.
   Look for The beef should be fully coated in butter.
   Tip Make sure the beef is dry before rubbing.

At the end of this phase, the beef roast should be completely and evenly coated in a thick, fragrant layer of garlic-herb butter.

The butter mixture should cling to the dry surface of the meat without sliding off, and the sliced onions should be neatly arranged in the bottom of the pan, ready to support the roast.

Slow Roasting and Basting

3. 3Roast the Beef
   Place the roasting pan in an oven preheated to 325°F (163°C). Roast the beef uncovered, allowing the herb butter to melt and create a beautiful savory crust while the onions slowly caramelize underneath.
   Look for The butter will melt and sizzle.
   Tip Keep the oven door closed to maintain heat.
4. 4Baste with Pan Drippings
   During the final 30 minutes of roasting, carefully spoon the rich, savory pan drippings and melted herb butter from the bottom of the pan over the top of the beef roast and the surrounding caramelized onions.
   Look for The roast should look glossy and brown.
   Tip Basting keeps the meat moist during cooking.

By the end of the roasting phase, the kitchen will fill with an incredibly rich aroma of garlic and caramelized onions. The exterior of the roast will have developed a beautiful, deep golden-brown herb crust, and the onions underneath will be soft, translucent, and swimming in savory, bubbling pan drippings.

Resting and Carving

5. 5Check Temperature and Rest
   Insert a meat thermometer into the thickest part of the roast. Once the internal temperature reaches 145°F (63°C), remove the pan from the oven. Transfer the beef roast to a clean cutting board and let the meat rest for at least 15 minutes before slicing.
   Look for The internal temperature must hit 145°F (63°C).
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip Resting allows the juices to redistribute.
6. 6Slice and Serve
   Use a sharp carving knife to smoothly slice the succulent beef roast across the grain into thin slices. Arrange the slices on a platter and serve immediately with the caramelized onions and savory pan juices spooned over the top.
   Look for The slices should be clean and even.
   Tip Slicing against the grain ensures maximum tenderness.

After resting, the beef roast will look plump and succulent, having reabsorbed its rich juices. When sliced with a sharp carving knife, the meat should yield easily, revealing a tender, juicy interior. The caramelized onions will be deeply golden and sweet, ready to be served alongside the sliced beef.

Common mistakes

One common mistake is roasting the beef straight from the refrigerator, which leads to uneven cooking where the outside overcooks before the center reaches the safe temperature.

Another error is slicing the roast immediately after removing it from the oven. Slicing too soon causes all the delicious, hot juices to run out onto the cutting board, leaving the meat dry and tough.

How to tell it’s done

The only reliable way to determine doneness is by using a reliable meat thermometer inserted into the thickest part of the roast.

For a safe and delicious result, the beef must reach an internal temperature of 145°F (63°C) and be allowed to rest for at least 3 minutes, which ensures the meat is fully cooked through and safe to eat.

• Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest