Slow-Roasted Lamb Shoulder with Rosemary and Mint
Tender slow-roasted lamb shoulder infused with fresh rosemary and a refreshing mint sauce, perfect for a traditional British meal. This british-inspired lamb ready in about 200 minutes pairs lamb shoulder, fresh rosemary sprigs, garlic cloves for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 480 calories and feeds 6, 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.
Ingredients
- 3 lbs lamb shoulder
- 4 sprigs fresh rosemary sprigs
- 6 cloves garlic cloves
- 3 tbsp olive oil
- 2 tsp salt
- 1 tsp black pepper
- 1 cup fresh mint leaves
- 2 tbsp white wine vinegar
- 1 tsp sugar
- 1/4 cup water
Instructions
- Step 1: Preheat your oven to 300°F (150°C). Pat dry 3 lbs lamb shoulder and make small incisions all over with a sharp knife. Insert 4 sprigs fresh rosemary and 6 smashed garlic cloves into the incisions. Rub 3 tbsp olive oil, 2 tsp salt, and 1 tsp black pepper evenly over the lamb.
- Step 2: Place the lamb shoulder in a roasting pan and cover tightly with foil. Roast in the oven for 3 hours until the meat is tender and falling apart.
- Step 3: While the lamb roasts, prepare the mint sauce: finely chop 1 cup fresh mint leaves, then combine with 2 tbsp white wine vinegar, 1 tsp sugar, and 1/4 cup water in a small bowl. Stir until sugar dissolves and let sit for 15 minutes to develop flavors.
- Step 4: Remove the lamb from the oven and let it rest covered for 15 minutes before carving. Serve with the fresh mint sauce spooned over the top.
Frequently asked questions
How long does Slow-Roasted Lamb Shoulder with Rosemary and Mint take to make?
Total time is about 200 minutes (20 min prep + 180 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.
How do I store leftover Slow-Roasted Lamb Shoulder with Rosemary and Mint?
Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep lamb shoulder from drying out.
Can I substitute ingredients in Slow-Roasted Lamb Shoulder with Rosemary and Mint?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Slow-Roasted Lamb Shoulder with Rosemary and Mint for a different number of people?
The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
What goes well with Slow-Roasted Lamb Shoulder with Rosemary and Mint?
British lamb like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.
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