Slow-Roasted Lamb Shoulder with Rosemary and Bush Tomato Glaze

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A succulent Australian lamb shoulder slow-roasted and basted with a tangy bush tomato and rosemary glaze, perfect for a comforting dinner. This australian-inspired lamb ready in about 255 minutes pairs bone-in lamb shoulder, fresh rosemary sprigs, minced garlic cloves for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 650 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.

Prep: 15 min Cook: 240 min Serves 6 Australian cuisine 650 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat the oven to 300°F. In a small bowl, mix 3 tbsp bush tomato paste, 3 tbsp olive oil, 2 tbsp red wine vinegar, 1 tbsp brown sugar, 6 minced garlic cloves, 2 tsp salt, and 1 tsp black pepper until smooth.
  2. Step 2: Score the fat on a 4 lb bone-in lamb shoulder and rub the bush tomato glaze all over the meat, including under the skin where possible. Tuck 4 fresh rosemary sprigs around the lamb.
  3. Step 3: Place the lamb in a roasting pan, pour 1 cup water into the bottom to keep moist, and cover tightly with foil.
  4. Step 4: Roast in the oven for 3.5 to 4 hours, basting every hour with the pan juices, until the meat is tender and pulls apart easily.
  5. Step 5: Remove the foil for the last 30 minutes to allow the glaze to caramelize, then let the lamb rest for 15 minutes before slicing and serving with the pan juices.

Equipment for this recipe

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Frequently asked questions

How long does Slow-Roasted Lamb Shoulder with Rosemary and Bush Tomato Glaze take to make?

Total time is about 255 minutes (15 min prep + 240 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 Bush Tomato Glaze?

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 Rosemary and Bush Tomato Glaze?

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 Bush Tomato Glaze 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 Bush Tomato Glaze?

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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