🐑 Herb-Crusted Lamb Rack Recipe | Mint & Pistachio Lamb on a Gas BBQ

🐑 Herb-Crusted Rack of Lamb with Mint & Pistachio Crust on a Gas BBQ

A beautifully cooked rack of lamb is one of those dishes that always feels like a special occasion. Tender, juicy and packed with flavour, it's surprisingly straightforward to cook on the barbecue and makes an elegant alternative to steaks or burgers.

This recipe pairs succulent lamb with a vibrant herb and pistachio crust inspired by classic British flavours. Fresh mint, parsley, garlic and crunchy pistachios create a delicious topping that complements the richness of the lamb without overpowering it.

Using a gas BBQ gives you excellent control over the cooking temperature, making it easy to achieve a perfectly pink centre while developing a lightly caramelised crust. Whether you're celebrating Easter, hosting a summer dinner party or simply enjoying a Sunday lunch outdoors, this recipe is guaranteed to impress.

📝 Recipe Overview

Prep Time: 20 minutes

Cook Time: 25–30 minutes

Resting Time: 10 minutes

Total Time: Approximately 1 hour

Serves: 4

Difficulty: Medium

🛒 Ingredients

For the Lamb

  • 2 racks of lamb (approximately 600g each, trimmed)
  • 2 tbsp olive oil
  • 2 garlic cloves, crushed
  • 1 tsp sea salt
  • 1 tsp freshly cracked black pepper

Mint & Pistachio Crust

  • 75g shelled pistachios, finely chopped
  • 2 tbsp fresh mint, finely chopped
  • 2 tbsp fresh flat-leaf parsley, finely chopped
  • 1 tbsp fresh rosemary, finely chopped
  • 1 tbsp Dijon mustard
  • Zest of 1 lemon
  • 1 tbsp olive oil

To Serve

  • Dauphinoise potatoes
  • Tenderstem broccoli
  • Honey-glazed carrots
  • Mint yoghurt

🔥 Equipment Needed

  • Gas BBQ
  • Meat thermometer
  • BBQ tongs
  • Small food processor (optional)
  • Mixing bowl
  • Sharp carving knife

👨🍳 Method

Step 1 – Prepare the lamb

Remove the lamb from the refrigerator 30 minutes before cooking.

Rub with olive oil, garlic, salt and black pepper.

Step 2 – Make the herb crust

Combine the pistachios, mint, parsley, rosemary, lemon zest and olive oil in a bowl.

Mix until evenly combined.

Step 3 – Prepare the barbecue

Preheat your gas BBQ to 190–200°C.

Set it up for indirect cooking by leaving one burner on a lower setting.

Step 4 – Cook the lamb

Place the lamb over indirect heat with the lid closed.

Cook for approximately 18–22 minutes, or until the internal temperature reaches 50°C.

Step 5 – Add the crust

Brush the lamb with Dijon mustard before gently pressing the herb and pistachio mixture onto the surface.

Move the lamb over direct heat for 2–3 minutes, allowing the crust to lightly toast without burning.

Step 6 – Rest

Transfer to a board and leave to rest for 10 minutes.

The internal temperature will continue to rise to around 54–56°C for medium-rare.

Step 7 – Slice and serve

Slice between each rib and serve with dauphinoise potatoes, seasonal vegetables and mint yoghurt.

💡 Cooking Tips

  • Allow the lamb to reach room temperature before cooking.
  • A meat thermometer is the easiest way to avoid overcooking.
  • Press the crust on gently so it stays in place.
  • Resting is essential for juicy lamb.
  • Fresh herbs give the best flavour and colour.

🌟 Delicious Variations

Rosemary & Parmesan Crust

Replace the pistachios with grated Parmesan for a rich savoury finish.

Mediterranean Lamb

Serve with whipped feta, roasted peppers and olives.

Garlic Butter Lamb

Finish with melted garlic herb butter instead of the crust.

Honey Mustard Lamb

Mix a little honey into the Dijon before adding the herb crust.

Herb-Crusted Lamb Chops

Use individual lamb chops and reduce the cooking time accordingly.

🍽️ What to Serve with Herb-Crusted Rack of Lamb

This lamb pairs beautifully with:

  • Dauphinoise potatoes
  • Garlic roasted new potatoes
  • Honey-glazed carrots
  • Tenderstem broccoli
  • Charred asparagus
  • Pea and mint salad
  • Yorkshire puddings
  • Red wine jus

🥡 Storage & Leftovers

Store leftover lamb in an airtight container in the refrigerator for up to 3 days.

Enjoy it cold in sandwiches or salads, or gently reheat until warmed through.

❓ Frequently Asked Questions

Can I cook this on a charcoal BBQ?

Yes. Simply set up your barbecue for indirect cooking and finish the lamb over direct heat.

What's the best internal temperature?

For medium-rare, aim for 54–56°C after resting.

Can I prepare the crust in advance?

Absolutely. The herb mixture can be made several hours ahead and kept refrigerated until needed.

Can I use lamb chops instead?

Yes. Lamb chops cook more quickly but work wonderfully with the same herb crust.

Why use indirect heat first?

Indirect cooking gently cooks the lamb evenly before it's finished over direct heat for colour and flavour.

🛍️ Shop the Equipment at Sal's Place

A gas BBQ makes it easy to cook delicate cuts like lamb with precision, helping you achieve a beautifully tender result every time.

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This elegant rack of lamb is perfect for everything from Sunday lunches to garden celebrations, proving that barbecues aren't just for burgers and sausages.