If this is your first time trying a rotisserie leg of lamb, you’re in for a treat. With a short ingredient list and a simple method, this recipe turns a classic roast leg of lamb into a tender, flavorful centerpiece.
Follow the recipe and expect fall-off-the-bone tender meat finished with a bright, mildly spicy chimichurri. Once you try this combination, you’ll likely prefer leg of lamb prepared this way for special dinners and gatherings.
Table of Contents
- Why You’ll Love Bone-In Lamb Leg Roast
- Ingredients for Your Roast Leg of Lamb
- How to Make the Rotisserie Leg of Lamb Recipe
- Easy Minted Potatoes Recipe
- Cooking Bone-In Leg of Lamb
- Roasting Time on the FIRE
- Resting Stage
- Serving Time
- What to Serve with Leg of Lamb
- Leftovers & Reheating
- More On Lamb
- FAQs
- Flavor X Fire & FOOD X Fire
- Rotisserie Leg of Lamb Recipe
Why You’ll Love Bone-In Lamb Leg Roast
A good roast lamb is hard to beat. The marinade in this recipe — light beer, garlic-herb seasoning, fresh garlic, lemon juice, shallot, and olive oil — tenderizes and flavors the whole leg. Paired with a tangy, herb-forward chimichurri, the result is juicy, savory meat with bright finishing notes. The overnight marinade deepens the flavor and improves tenderness, making this ideal for Easter, Christmas, or any special occasion.
Ingredients for Your Roast Leg of Lamb
- Whole leg of lamb — bone-in, available from most grocery stores or your butcher.
- Marinade — light beer, garlic-herb seasoning, garlic cloves, lemon juice, shallot, and olive oil to tenderize and flavor the lamb.
- Chimichurri — fresh parsley, red wine vinegar, garlic, red chili flakes, olive oil, and kosher salt for a punchy sauce to finish the roast.
How to Make the Rotisserie Leg of Lamb Recipe
Combine the marinade ingredients in a blender or food processor and blend until smooth. Score the fat cap of the leg of lamb to help the marinade penetrate and to promote even browning. Place the lamb in a food-safe container or a large zip-top bag and pour the marinade over it so the meat is well coated. Refrigerate for at least 4 hours, or preferably overnight for best flavor and tenderness.
Easy Minted Potatoes Recipe
Minted potatoes make a classic companion for roast lamb. The fresh mint brightens the dish and pairs well with garlic and lemon notes from the lamb. This simple side is easy to adapt to your taste.
- Boil 2 lb baby potatoes until fork-tender, about 15–20 minutes.
- In a small pan, melt 2 tbsp butter over medium heat. Add 1 tbsp olive oil, 2 minced garlic cloves, and 3 tbsp chopped fresh mint; cook 1–2 minutes to release the flavors.
- Drain the potatoes and place in a bowl.
- Toss the potatoes with the mint-butter mixture, season with salt and black pepper, and serve warm.
Cooking Bone-In Leg of Lamb
Roasting Time on the FIRE
When the lamb has marinated, remove it from the marinade and discard the excess liquid. Mount the leg on the rotisserie spit and secure it. Prepare a two-zone indirect fire at medium-high heat, aiming for a grill temperature around 350–375°F. Position the rotisserie so the lamb turns over the cooler side for steady, even roasting.
Roast for roughly 2.5–3.5 hours, checking with an instant-read thermometer in the thickest part of the meat. Remove the lamb when it reaches 130–135°F for a nicely pink interior. Keep the heat steady and mist the lamb lightly with water if any spots flare or become too hot.
Resting Stage
After reaching the target temperature, remove the lamb and let it rest for 20–25 minutes to allow the juices to redistribute. While it rests, prepare the chimichurri by combining parsley, red wine vinegar, garlic, red chili flakes, olive oil, and salt; let it sit for about 10 minutes to meld.
Serving Time
Slice the rested lamb against the grain with a sharp knife and spoon the chimichurri over the slices. Serve immediately so each bite retains its juiciness and bright herb flavor.
What to Serve with Leg of Lamb
There are many excellent sides for a lamb roast. Minted potatoes are a classic pairing. Roasted root vegetables such as carrots and parsnips with rosemary are also wonderful. A leafy spinach salad with toasted pecans, dried cranberries, blue cheese, and balsamic dressing balances the richness of the meat. A bold red wine complements the meal if you choose to serve one.
Leftovers & Reheating
Store leftover lamb wrapped tightly in foil or in an airtight container for 3–5 days. To reheat, keep the meat in foil on the grill or in the oven and add a splash of broth or light beer to maintain moisture. Warm gently until heated through, about 15–20 minutes, and serve.
More On Lamb
Hanging Lamb Leg
Smoked Rack of Lamb
BBQ Lamb Ribs
Cast Iron American Lamb Chops
American Lamb Tacos Al Pastor
Zesty Lamb Kebabs with Mint Yogurt Sauce
FAQs
A robust Cabernet Sauvignon pairs very well with lamb. Malbec offers a spicier profile, while a lighter Pinot Noir is a good choice if you prefer something more delicate.
New Zealand lamb, typically grass-fed, tends to be milder in flavor. American lamb may have a slightly stronger taste depending on the animal’s diet. Both are excellent; choose based on the flavor intensity you prefer.
Yes. You can prepare chimichurri ahead and store it in an airtight container in a cool, dark place until serving. Fresh chimichurri has the brightest flavor, but it still holds up well when made in advance.
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Rotisserie Leg of Lamb
Print Recipe
Ingredients
Lamb:
- 1 Whole Leg of Lamb
Marinade:
- 12 oz Light Beer
- 2.5 tbsp Garlic Herb Seasoning
- 6–8 Garlic Cloves
- 3 medium Lemons juiced
- 1 medium Shallot
- 2 tbsp Olive Oil
OTFC Chimichurri:
- ½ cup Parsley chopped
- ¼ cup Red Wine Vinegar
- 4–6 Garlic Cloves minced
- 1 tbsp Red Chili Flakes
- Olive Oil to desired consistency
- Kosher Salt to taste
Instructions
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Blend all marinade ingredients until smooth.
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Score the fat cap on the leg of lamb, place the lamb in a food-safe container, and pour the marinade over it.
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Refrigerate for at least 4 hours, preferably overnight.
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Remove the lamb from the marinade and discard the excess liquid.
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Mount the leg on the rotisserie spit and secure it.
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Preheat a two-zone indirect medium-high fire (about 350–375°F) with the rotisserie turning over the cooler side.
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Cook until the internal temperature reaches 130–135°F (about 2.5–3.5 hours). Maintain steady heat and spritz with water if needed to cool any hot spots.
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Remove and let the lamb rest for 20–25 minutes.
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Mix chimichurri ingredients and let the sauce sit for 10 minutes.
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Slice the lamb, top with chimichurri, and serve.
Notes
Easy Minted Potatoes Recipe
Any roast lamb benefits from potatoes with fresh mint. Use the simple recipe listed above or adjust to your preference.
- Boil 2 lb baby potatoes until fork-tender (15–20 minutes).
- Melt 2 tbsp butter with 1 tbsp olive oil, add 2 minced garlic cloves and 3 tbsp chopped fresh mint; cook 1–2 minutes.
- Drain potatoes and place in a bowl.
- Toss potatoes with the mint-butter, season with salt and pepper, and serve.