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 mid-week dinner, or fuss-free roast on the weekend.
Air frying is such a great way to roast meat, I no longer turn my oven on these days unless we are having a huge roast. You should also try this tasty air fryer rack of lamb, air fryer roast beef, or air fryer pork roast.
Scroll down for the printable recipe card for this air fryer roast lamb, 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 need the lamb roast to be approximately 2 inches thick. This allows it to cook really quickly in the air fryer, ensuring it stays moist and tender on the inside. If it is thicker or thinner than this, you will need to adjust the cooking time.
You can use any type of lamb roast that you would normally roast in an oven. We often have lamb rump roast, but lamb loin roast is also great.
Rack of lamb is awesome cooked in an air fryer, but the cook times are slightly different so check you 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.
How to prepare lamb for air frying
Season: the lamb roast. Dry the lamb well before seasoning. The meat will only start browning after all the moisture has evaporated from the outer surface.
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.
How long to air fry lamb?
Air fry your lamb roast at 360°F/ 180°C.
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 20 minutes per lb of lamb 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 exactly right for my Philips Airfryer. If you have another powerful brand of air fryer like the Nuwave or a Ninja Foodi then expect cook times to be similar.
However, 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.
What to serve with roast lamb
I love to serve a classic roast with 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:
- Prep the potatoes and roast them in the air fryer for 15 minutes while I prepare 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.
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!
Air Fryer Roast Lamb Recipe Card
How to cook roast lamb in an air fryer.
- 10 oz butterflied lamb leg roast
- 1 tbsp olive oil
- 1 tsp rosemary, fresh or dried
- 1 tsp thyme, fresh or dried
- 1/2 tsp black pepper
- Preheat air fryer to 360°F (180°C)
- On a plate, mix olive oil with rosemary and thyme.
- 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 for 15 minutes.
- This should give you medium lamb. Though when cooking roast lamb in an air fryer it is best to 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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