Slow-Roasted Baby Lamb Shoulder with Rosemary and Garlic

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Tender and succulent slow-roasted baby lamb shoulder infused with fresh rosemary and garlic, perfect for a comforting dinner. This mediterranean-inspired lamb ready in about 215 minutes pairs baby lamb shoulder, 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 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. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

★ 4.1 (8 ratings) Prep: 20 min Cook: 195 min Serves 6 Mediterranean cuisine 450 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat the oven to 300°F. Pat dry 3 pounds of baby lamb shoulder and rub it with 3 tablespoons olive oil, 6 minced garlic cloves, 1 tablespoon sea salt, 1 teaspoon freshly ground black pepper, and 1 teaspoon lemon zest, ensuring the seasoning covers all sides.
  2. Step 2: Place the lamb in a roasting pan and tuck 4 sprigs of fresh rosemary around it. Pour 1/2 cup water into the bottom of the pan to keep the meat moist during cooking.
  3. Step 3: Cover the roasting pan tightly with aluminum foil and roast the lamb for 3 hours, or until the meat is fork-tender and easily pulls apart.
  4. Step 4: Remove the foil and increase oven temperature to 425°F. Roast uncovered for an additional 15 minutes to develop a golden crust.
  5. Step 5: Let the lamb rest for 15 minutes before slicing and serving, allowing the juices to redistribute for maximum tenderness.

Frequently asked questions

How long does Slow-Roasted Baby Lamb Shoulder with Rosemary and Garlic take to make?

Total time is about 215 minutes (20 min prep + 195 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 Baby Lamb Shoulder with Rosemary and Garlic?

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 baby lamb shoulder from drying out.

Can I substitute ingredients in Slow-Roasted Baby Lamb Shoulder with Rosemary and Garlic?

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 Baby Lamb Shoulder with Rosemary and Garlic 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 Baby Lamb Shoulder with Rosemary and Garlic?

Mediterranean 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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