Slow-Roasted Lamb Shoulder with Mint and Garlic

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Tender lamb shoulder slow-roasted with fresh garlic and mint, delivering a classic Australian comfort meal perfect for family dinners. This australian-inspired lamb ready in about 220 minutes pairs bone-in lamb shoulder, chopped fresh mint leaves, minced garlic cloves 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.

Prep: 20 min Cook: 200 min Serves 6 Australian cuisine 450 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat your oven to 325°F. In a small bowl, combine 3 tbsp olive oil, 6 minced garlic cloves, 1/4 cup chopped fresh mint leaves, 2 tbsp lemon juice, 1 1/2 tsp salt, and 1 tsp black pepper to create a marinade.
  2. Step 2: Rub the marinade all over the 3 lbs bone-in lamb shoulder, ensuring it is evenly coated. Place the lamb in a roasting pan and tuck 2 rosemary sprigs around it.
  3. Step 3: Pour 1 cup of water into the bottom of the roasting pan to keep the meat moist. Cover the pan tightly with foil and roast the lamb shoulder in the preheated oven for 3 hours, until the meat is fork-tender and falling off the bone.
  4. Step 4: Remove the foil and roast uncovered for an additional 20 minutes to brown the surface. Let the lamb rest for 15 minutes before carving and serving.

Frequently asked questions

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

Total time is about 220 minutes (20 min prep + 200 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 Mint 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 bone-in lamb shoulder from drying out.

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

Australian 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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