Baked Lamb Loin with Wattleseed and Macadamia Crust

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Tender lamb loin encrusted with ground wattleseed and crushed macadamias, baked to perfection for a uniquely Australian flavor experience. This australian-inspired lamb ready in about 45 minutes pairs lamb loin, ground wattleseed, coarsely chopped macadamia nuts 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.

Prep: 15 min Cook: 30 min Serves 4 Australian cuisine 450 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat your oven to 375°F. Pat dry 1.5 lbs lamb loin and drizzle with 2 tbsp olive oil, then season evenly with 1 tsp salt and 1/2 tsp black pepper.
  2. Step 2: In a bowl, mix 2 tbsp ground wattleseed, 1/2 cup coarsely chopped macadamia nuts, 2 tsp chopped fresh rosemary, 3 minced garlic cloves, and 1 tsp lemon zest.
  3. Step 3: Press the wattleseed and macadamia mixture firmly onto the top and sides of the lamb loin, creating a crust.
  4. Step 4: Heat 1 tbsp olive oil in an ovenproof skillet over medium-high heat. Sear the lamb loin for 2-3 minutes on each side until golden brown crust forms.
  5. Step 5: Transfer the skillet to the preheated oven and roast for 15-20 minutes for medium-rare, or until an internal temperature of 135°F is reached.
  6. Step 6: Remove from oven and let the lamb rest for 10 minutes before slicing to keep the juices locked in.

Equipment for this recipe

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Frequently asked questions

How long does Baked Lamb Loin with Wattleseed and Macadamia Crust take to make?

Total time is about 45 minutes (15 min prep + 30 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 Baked Lamb Loin with Wattleseed and Macadamia Crust?

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 loin from drying out.

Can I substitute ingredients in Baked Lamb Loin with Wattleseed and Macadamia Crust?

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 Baked Lamb Loin with Wattleseed and Macadamia Crust for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). 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 Baked Lamb Loin with Wattleseed and Macadamia Crust?

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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