Slow Roast Beef

A luxurious prime New York strip roast seasoned with garlic and rosemary, slow-roasted to perfection and served with a creamy horseradish sauce. Perfect for special occasions and entertaining.

8 servings
6 hr 25 min

Ingredients

  • 1 piece New York strip roast
  • 2 tbsp Kosher salt and pepper
  • 6 cloves garlic cloves
  • 3 Tbsp rosemary
  • 5 Tbsp extra-virgin olive oil
  • ½ cup plain whole-milk Greek yogurt
  • ½ cup sour cream
  • 2 Tbsp prepared horseradish
  • ½ tsp lemon zest
  • 1 serving rolls and cornichons

Cooking Instructions

  1. 1.

    Lightly score fat cap of roast, spacing cuts about 3/4" apart, with a sharp knife, being careful not to slice into the flesh. Season roast generously on all sides with salt and pepper. Mix garlic, rosemary, and 3 Tbsp. oil in a small bowl and rub all over roast. Loosely cover with plastic wrap and chill at least 12 hours and up to 2 days.

    30 min

  2. 2.

    Preheat oven to 200°F. Place roast on a wire rack set inside a large rimmed baking sheet. Roast until an instant-read thermometer inserted into the thickest part of meat registers 118°F-120°F for medium-rare, about 2 1/2 hours. Let rest 1 hour (internal temperature will continue to climb to 125°F-130°F).

    210 min

  3. 3.

    Mix together yogurt, sour cream, horseradish, and lemon zest in a small bowl; season sauce with salt.

    10 min

  4. 4.

    Heat remaining 2 Tbsp. oil in a large skillet over medium. Cook roast just until browned, about 2 minutes per side. Transfer to a cutting board and thinly slice. Serve with horseradish sauce, rolls, and cornichons.

    15 min

  5. 5.

    Beef can be roasted and browned 3 days ahead. Cover and chill. Let sit at room temperature 1-2 hours before serving.

    120 min