Air fryer roast lamb – tender flavorful lamb roasted in the air fryer, with no need to toil over a hot oven. Season with fresh rosemary and thyme and serve with roasted potatoes and fresh steamed vegetables for a classic lamb roast.
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How to Roast Lamb in an Air Fryer
Cooking roast lamb in an air fryer is a great option when you are short on time. It is quick and easy, and no messy roasting pans to deal with means it makes a great fuss-free roast on the weekend, or something special for a holiday celebration.
Air frying is such a great way to roast meat, it gets that delicious crust to develop on the outside quickly so that the inside of the meat still remains succulent and juicy, and it is much quicker than oven roasting. I no longer turn my oven on these days unless we are having a huge roast!
I also love that you don’t have the meat sitting right in the fat, absorbing it while it cooks, making air fryer roasted meats a healthier option. The air fryer that I have* even claims to remove the saturated fat from food making it even healthier!
Scroll down for the printable card for this air fryer roast lamb recipe, or read on for all the details!
What lamb to use
The recipe uses a butterflied leg of lamb, which you can ask your local butcher to prepare for you, or you can just cut it open yourself using a sharp knife. I would, however, recommend buying a boneless leg roast, as this will make the process much easier as the bone has already been removed.
You can actually use any type of lamb roast for recipe, as long as it is around 2 inches thick the cook times in the recipe below should be right (depending on your air fryer).
This allows the lamb to cook really quickly in the air fryer, ensuring it stays succulent and tender on the inside. If it is thicker or thinner than this, you will need to adjust the cooking time in the recipe below.
We often have lamb rump roast, but lamb loin roast is also great. Lamb rack is awesome cooked in an air fryer, but the cook times are slightly different so check out my recipe specifically for this cut: air fryer rack of lamb.
Note: If your lamb roast is much thicker than 2 inches then the cooking times will be longer than in the recipe below, so use a meat thermometer to check progress during cooking.
Air fried roast lamb has a lovely rich flavor, which is really enhanced by the classic seasoning of rosemary and thyme.
You can use any spices that you like with lamb, and sometimes I use a Moroccan seasoning, cumin or curry powder, but I do like a classic roast with rosemary and thyme, so usually stick to the recipe below.
Step 1: Prepare lamb for air frying
First, preheat the air fryer to 360°F/ 180°C.
Then pat the lamb roast dry with paper towels before seasoning. This step is important because the meat will only start browning after all the moisture has evaporated from the outer surface.
Drizzle oil over the lamb, then add the salt, pepper and herbs, and rub into the lamb. If you are using fresh rosemary, pick the leaves off and chop them up quite finely before using.
For an easy way to season your lamb, mix all the herbs and salt together with the oil on a plate and roll the lamb in it.
Step 2: Air fry lamb
Place lamb roast in the air fryer basket. Add some extra sprigs of rosemary if you like. Air fry lamb roast at 360°F/ 180°C for around 15 minutes until cooked to your liking. See the section below on how long to air fry lamb for more details.
Step 3: Rest lamb. Remove lamb from the air fryer to a plate or cutting board, and cover with aluminum foil for 10 minutes to rest. This allows the juices to reabsorb into the meat before you cut it, ensuring it stays moist.
How long to air fry lamb?
If you have a different sized lamb roast from the recipe below, you can work out how long to air fry it by following the rule of air fry lamb for 20 minutes per lb for rare, then add two minutes per lb for each degree of doneness that you like.
The cook times in the recipe below are usually pretty exact right for my Philips XXL Airfryer. If you have another powerful brand of air fryer like the Nuwave or a Ninja Foodi then expect cook times to be similar.
The best way to tell whether your lamb roast is cooked is to use a meat thermometer to check the internal temperature. For roast lamb it should be 145°F / 63°C for medium. The USDA states this is the minimum safe temperature for lamb.
I have a wireless meat thermometer* that I often use when I am air frying meat to get the cook time exactly right. It is great to use with an air fryer, as there are no wires so you can use it with the air fryer draw fully shut and monitor temperature during cooking. Shop it on Amazon here*.
Any instant-read type meat thermometer will do the job though. Try Thermopro* for a quality brand with budget-friendly options.
Serving roast lamb
I love to serve a classic roast with gravy, Dijon mustard, roasted potatoes, and fresh microwave steamed vegetables.
If you want to also cook side dishes in the air fryer, you can precook them for part of the cooking time before the lamb, then put them back in the air fryer to finish cooking for 10 minutes while the lamb is resting.
I often cook these air fryer roast potatoes, when we have this lamb roast, here is my method:
- Prepare the potatoes and roast them in the air fryer for 15 minutes while I season the lamb.
- Remove the potatoes to a bowl and cover with foil while I roast lamb.
- Remove the lamb to rest for ten minutes, and return the potatoes to the air fryer to finish roasting.
Or, if you have a large air fryer, you can cook the lamb and vegetables in the air fryer at the same time. You just need to work out which takes longer to cook, and remember that the veges can cook on their own for ten minutes at the end while the lamb is resting.
For a classic roast I serve roast lamb with a mint sauce. You can try an easy homemade version by mixing chopped fresh mint leaves with sugar and vinegar. It looks a little rustic, but tastes fantastic!
Storing and reheating
Store any leftover lamb roast in an air-tight container in the refrigerator, and use within 3 days.
You can reheat lamb roast in the air fryer, air fry for 3-4 minutes until warmed through. Alternatively, you can reheat it in the microwave, 1-2 minutes on high.
Air Fryer Roast Lamb Recipe Card
How to cook roast lamb in an air fryer.
- 10 oz/ 300 g butterflied lamb leg roast
- 1 tablespoon olive oil
- 1 teaspoon rosemary, fresh or dried
- 1 teaspoon thyme, fresh or dried
- ½ teaspoon black pepper
- Preheat air fryer to 360°F/ 180°C.
- Mix olive oil with rosemary and thyme on a plate.
- Pat lamb roast dry and place into the herb oil mixture, turning it to ensure it is well coated.
- Place lamb in air fryer basket, and air fry at 360°F/ 180°C for 15 minutes.
- This should give you medium lamb. Check the temperature with a meat thermometer to ensure that it is cooked to your liking (medium should be 145°F / 63°C). Cook for additional 3 minute intervals if you prefer it more well done.
- Remove roast lamb from air fryer, cover with kitchen foil and leave to rest for five minutes before serving (this allows the juices to reabsorb into the meat).
- Carve against the grain to serve.
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Amount Per Serving: Calories: 181Total Fat: 11gSaturated Fat: 2gUnsaturated Fat: 0gCholesterol: 57mgSodium: 56mgCarbohydrates: 1gProtein: 18g
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