Slow-Roasted British Beef with Rosemary and Horseradish Cream

By AislePrompt Editorial · Published 2026-05-08 · Updated 2026-05-08

A tender slow-roasted beef joint infused with fresh rosemary, served with a zesty horseradish cream sauce that balances the rich meat flavors. This British-inspired beef recipe, ready in about 165 minutes, pairs beef roasting joint (rib or sirloin), fresh rosemary sprigs, garlic cloves, minced for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 450 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 2 pounds beef roasting joint (rib or sirloin)
• 3 fresh rosemary sprigs
• 4 garlic cloves, minced
• 3 tbsp olive oil
• 1 tsp sea salt
• 1 tsp black pepper, freshly ground
• 1/2 cup sour cream
• 2 tbsp prepared horseradish
• 1 tsp lemon juice
• 1 tbsp chives, finely chopped

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Instructions

1. Step 1: Preheat your oven to 275°F (135°C). Pat dry 2 pounds of beef roasting joint and rub it with 3 tablespoons olive oil, 4 minced garlic cloves, 1 teaspoon sea salt, 1 teaspoon freshly ground black pepper, and the leaves from 3 sprigs of fresh rosemary, pressing the mixture into the meat.
2. Step 2: Place the beef on a roasting rack inside a roasting pan and slow-roast in the oven for approximately 2.5 hours, until the internal temperature reaches 130°F (54°C) for medium-rare; tent with foil and rest for 15 minutes before slicing.
3. Step 3: Meanwhile, in a small bowl, combine 1/2 cup sour cream, 2 tablespoons prepared horseradish, 1 teaspoon lemon juice, and 1 tablespoon finely chopped chives. Mix until smooth and refrigerate until serving.
4. Step 4: Slice the rested beef against the grain into 1/4-inch thick slices and serve with a dollop of the horseradish cream alongside steamed vegetables or roasted potatoes.