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Home » Instant Pot

Pressure Cooker Leg of Lamb

Published: Dec 8, 2021 · Modified: Jan 22, 2024 by Kristina Tipps · This post may contain affiliate links for which I earn a small commission.

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Pressure Cooker Leg of Lamb makes a delicious and tender holiday roast that takes a fraction of the time as it does on the stove or in the oven and slow cooker. It's fall apart tender, juicy, and full of warm flavor.

"Super tender and so flavourful!! No leftovers!!"

pressure cooked leg of lamb with carrots on a serving dish
Table Of Contents
  • What To Serve With Lamb Roast
  • Equipment Needed
  • Ingredients and Substitutions
  • Pressure Cook Time
  • Step-By-Step Instructions
  • Tips from the Chef
  • Recipe FAQs
  • Recipe
  • Recipe Reviews

Festive pressure cooker leg of lamb is a great main dish for your next holiday gathering. It's simple, delicious, and a true time and space saver when preparing big holiday dinners. In less than 2 hours you can have this delicious boneless leg of lamb roast ready to serve with you favorite accompaniments.

Naturally flavorful and tender, a boneless leg of lamb is seasoned with a Middle-Eastern inspired garlic, rosemary, thyme and allspice herb mix. These simple yet succulent seasonings bring out the robust flavors of a juicy lamb roast. You can also make a similar lamb roast dinner in your slow cooker or try out the sous vide function on your Instant Pot to make a sous vide leg of lamb.

My family has passed this recipe done for generations, after my great-great-grandfather created it for his big Christmas dinner in Syria, where lamb is an extremely popular choice of meat. Lamb's unique flavor doesn't often need much in the way of seasonings and spices- just a few classics that bring out it's strong flavor. This recipe is one our family favorites, next to Instant Pot stuffed grape leaves, Middle Eastern stuffed peppers and cabbage rolls.

What To Serve With Lamb Roast

Lamb roast is excellent when paired with simple side dishes, like roasted or steamed vegetables, starchy vegetables like potatoes and light soups or pasta sides. Some ideas are:

  • Instant Pot Garlic Mashed Potatoes
  • Air Fryer Rosemary Roasted Baby Potatoes
  • Crockpot Mashed Sweet Potatoes
  • Air Fryer Whole Sweet Potatoes
  • Air Fryer Salt and Peppered Green Beans
  • Seasoned Asparagus
  • Fresh Cranberry Sauce with Cinnamon or Instant Pot Cranberry Sauce
  • Air Fryer Eggplant with Crispy Herb Seasoning
  • Instant Pot Lentil Soup
  • Instant Pot Celery Soup
  • Creamy White Pasta

Equipment Needed

  • Instant Pot: you'll need at least an 8 quart Instant Pot for a 5 pound lamb. For larger cuts, a 10 quart Instant Pot will work depending on how many pounds the lamb is. I use my 8 quart Instant Pot Duo Crisp and it can fit a boneless leg of lamb that's no bigger than 5 pounds.
  • Silicone sling or trivet: these make lifting the lamb out of the inner pot much easier than trying to pull it out with tongs. This Instant Pot red silicone sling is my favorite pressure cooker accessory. It's long handles make it incredibly easy to pull out of the pot. The silicone is non slip, so you don't have to worry about food falling off of it as you lift it either!
  • Cooking twine: usually a leg of lamb is purchased already tied together, but if not, you can tie it yourself if you'd like since it's being stuffed with garlic and herbs. This is optional, though because the lamb fits tightly in the pressure cooker and won't be able to fall open much.

Ingredients and Substitutions

lamb roast, carrots, garlic, and fresh herbs on a cutting board
  • Boneless leg of lamb: substitute with bone-in leg of lamb or lamb shoulder. Lamb shoulder is a popular cut for long and slow cooking, so you may have heard to use this instead of leg when making a lamb roast. But because we are pressure cooking the leg, there is no need to worry about it drying out and becoming overcooked. (make sure to read about cook time below!)
  • Garlic: opt for fresh whole cloves rather than minced garlic. For stronger flavor, use roasted garlic!
  • Fresh rosemary and thyme, plus extra sprigs: substitute with dried herbs by using 1 teaspoon of dried rosemary and thyme for every 1 tablespoon of fresh that the recipe calls for.
  • Allspice: a little allspice goes a long way and is a fantastic spice to use with lamb. Do not make a substitution.
  • Beef broth: substitute with chicken broth.
  • Freshly ground black pepper and salt: if possible, use freshly ground salt and pepper for the best flavor. Otherwise substitute with ground.
  • Carrots: carrots are entirely optional in this recipe, as the long pressure cook time gives way to very soft carrots that may not be enjoyable to all. If you prefer crispy carrots with your lamb roast, cook them separately.

You can also add a splash of red wine to the pot once it's done pressure cooking if you're not alcohol-free. This will elevate the flavors of the lamb, garlic, and seasonings a bit.

Pressure Cook Time

*These times are estimates and might vary based on your pressure cooker brand and age.

A boneless leg of lamb should be pressure cooked for 7 minutes per pound for medium doneness. For medium rare, cook for 5 minutes per pound. For well done lamb, cook for 9 minutes per pound.

Lamb tastes best when served medium or medium-rare, as the flavors are more pronounced, it's juicer, and more tender when it's a little pink inside.

As with any pressure cooked meat, make sure to let the pressure release naturally for the most tender outcome. Quickly releasing pressure on meats can turn a flavorful and tender meal into a tough and chewy one.

Step-By-Step Instructions

Pressure cooker leg of lamb is made in 5 simple steps. Although such an impressive and flavorful roast sounds complicated to prepare and cook, it is very easy!

STEP 1: Slice the garlic cloves in half or thirds and insert half of the slices into the pockets or folds in the lamb. Roughly chop the fresh rosemary and thyme. In a small bowl, combine the herbs with salt, freshly ground black pepper, and allspice. Mix to combine.

garlic cloves stuffed into a leg of lamb

STEP 2: Roughly chop the fresh rosemary and thyme. In a small bowl, combine the herbs with salt, freshly ground black pepper, and allspice. Mix to combine. Then rub the lamb on both sides with the herb mix.

leg of lamb rubbed with an herb mix

STEP 3: Add the olive oil to the inner pot and set to the sauté setting for 8 minutes. Sear the leg of lamb on both sides for 4 minutes. Remove when done and add the beef broth to the inner pot. Deglaze until there are no pieces of food stuck on the bottom. Cancel the sautè setting.

seared leg of lamb in an inner pot of a pressure cooker

STEP 4: Place a trivet or silicone sling in the inner pot and place the seared lamb on top. Return the seared lamb to the inner pot. Add the remaining garlic cloves, carrots (if using), rosemary sprigs and thyme sprigs. Close and seal the lid. Set to pressure cook on high for 25 minutes for a medium-rare roast or 35 minutes for a medium done roast. *See above cooking times for preferred doneness.

leg of lamb, carrots, broth and herb sprigs in the inner pot of a pressure cooker

STEP 5: Allow the pressure to naturally release for 10 minutes, then quickly release any remaining pressure. Open the lid and carefully remove the sling or trivet to a cutting board. Remove the carrots to a serving dish.

pressure cooked leg of lamb roast and carrots on a sling in the inner pot

STEP 6: Slice the lamb and transfer to the serving dish. Pour some of the broth over the roast and carrots. Reserve the rest for another use or serve on the side so it can be poured over individual plates.

pressure cooker leg of lamb with carrots in a white serving dish

Enjoy!

Tips from the Chef

  • Don't over cook your lamb leg! Lamb is best when it's not well done. The preferred way to enjoy lamb is when it's slightly pink inside, so it's always better to shave a few minutes off the total cook time rather than add.
  • Always let the pressure release naturally for 10-15 minutes when cooking meats. Otherwise you'll be left with a tough and chewy meal.
  • Don't add carrots or other vegetables if you like your vegetables crispy. The long pressure cook time for this recipe is going to produce very soft vegetables.

Recipe FAQs

Does Lamb Become More Tender The Longer It's Cooked?

Some cuts of lamb, like shank and shoulder, benefit from being cooked slowly for a long period of time. They will become more tender the longer they are cooked. However, the majority of lamb cuts are already tender to begin with and will become tough if cooked for a long duration. Because leg of lamb is one of the cuts that is naturally tender, it's important not to cook it for too long. It's best to cook these cuts to medium or medium-rare.

Do I Need To Adjust The Cook Time If I'm Using Bone-In Leg of Lamb?

Yes, the cook time does need to be adjusted. For medium, cook for 9 minutes per pound and medium-rare cook for 7 minutes per pound. A well done bone-in roast should be cooked for 12 minutes per pound.

How To Store Pressure Cooker Leg of Lamb

Store in the fridge for up to 1 week. This recipe can also be frozen for up to 6 months. Store the broth in a separate container when freezing. Thaw overnight in the fridge.

Can I Use A Roast That's More Than 5 Pounds?

You can, but you'll need to use a 10 quart Instant Pot for it to properly fit and cook.

sliced pressure cooker leg of lamb on a white serving dish

MORE INSTANT POT HOLIDAY RECIPES

  • Instant Pot Cabbage Rolls
  • Instant Pot Venison Roast
  • Instant Pot Cranberry Sauce
  • Instant Pot Lamb Stew
  • Instant Pot Pumpkin Cheesecake

MORE LAMB RECIPES YOU'LL LOVE

  • Kebab Hindi: Syrian Lamb Meatballs, Vegetables and Rice
  • Middle Eastern Stuffed Bell Peppers (Koosa Mih-shee)
  • Instant Pot Stuffed Peppers
  • Slow Cooker Kebab Hindi (Lamb Meatballs)
  • Slow Cooker Lamb Shoulder

If you enjoyed this recipe, make sure to give it a star rating and let me know what you thought in the comments! And follow me on Facebook, Pinterest and Instagram for more delicious recipes!

Recipe

pressure cooker leg of lamb in a white bowl

Pressure Cooker Leg of Lamb

Kristina Tipps
Pressure cooker leg of lamb makes a delicious and tender holiday roast that takes a fraction of the time that it does on the stove or in the oven. It's fall apart tender, juicy, and full of warm flavor.
4.83 from 129 votes
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Prep Time 10 minutes minutes
Cook Time 1 hour hour 35 minutes minutes
Total Time 1 hour hour 45 minutes minutes
Course Main Course
Cuisine American, Middle Eastern
Servings 10
Calories 198 kcal

Equipment

  • pressure cooker
  • Trivet

Ingredients

  • 5 lb boneless leg of lamb
  • 2 tablespoon olive oil
  • 12 garlic cloves
  • 4 tablespoon fresh rosemary
  • 2 tablespoon fresh thyme
  • ½ teaspoon allspice
  • 1 teaspoon salt
  • 1 teaspoon freshly ground black pepper
  • 4 cups beef broth
  • 2 sprigs rosemary
  • 2 sprigs thyme
  • 2 lbs carrots optional

Instructions
 

  • Roughly chop the fresh rosemary and thyme. In a small bowl, combine with the salt, pepper, and allspice. Mix to combine.
  • Slice the garlic cloves in half. Insert half of the pieces into the pockets or folds in the lamb. Rub the lamb on both sides with the herb mix.
  • Add the olive oil to the inner pot and set to the sauté setting for 8 minutes. Sear the lamb on each side for 4 minutes. Remove the lamb when done and add the beef broth to the inner pot. Deglaze until there are no pieces of food stuck to the bottom. Cancel the sautè setting.
  • Place a trivet or silicone sling in the inner pot and place the seared lamb on top. Add the remaining garlic cloves, carrots (if using), rosemary sprigs and thyme sprigs. Close and seal the lid. Set to pressure cook on high for 25 minutes (or 35 minutes for a medium done roast). *See notes on cooking times for preferred doneness.
  • Allow pressure to naturally release for 10 minutes, then quickly release remaining pressure. Open the lid and remove the sling or trivet to a cutting board. Transfer the carrots to a serving dish.
  • Optional: Give the cooked lamb a sear on all sides using a stovetop frying pan or griddle, until the outer crust is darkened and crispy.
  • Let rest for 10 minutes, then slice and transfer to a serving dish. Pour one third of the broth over the roast and carrots. Reserve the rest for another use or serve on the side.

Notes

Cook Time: 7 minutes per pound is good for a medium done boneless lamb roast. For medium-rare cook for 5 minutes per pound. For well done, cook for 9 minutes per pound. 
If using bone-in leg of lamb, cook for 9 minutes per pound for medium, 7 minutes per pound for medium-rare, and 12 minutes per pound for well done.

Nutrition

Serving: 8ozCalories: 198kcalCarbohydrates: 2gProtein: 31gFat: 7gSaturated Fat: 2gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gCholesterol: 91mgSodium: 679mgPotassium: 497mgFiber: 1gSugar: 1gVitamin A: 101IUVitamin C: 4mgCalcium: 31mgIron: 3mg
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Comments

    4.83 from 129 votes (124 ratings without comment)

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    Recipe Rating




  1. Susan says

    June 27, 2024 at 1:49 pm

    Hello,
    At the beginning of the directions you state that if the meat is already encased with twine you can you use that or make your own. After looking through the instructions and pictures I do not see that the meat is encased with the twine at all? So do you use the twine in the cooking process or remove it?

    Thank you?

    Reply
    • Kristina Tipps says

      June 28, 2024 at 9:29 pm

      Hi Susan. Encasing the lamb in twine is optional. It may not have been clearly stated but the instructions also mention that because the lamb fits tightly in the pressure cooker it won't be able to fall open too much and therefore needing twine is optional. I hope you enjoy it!

      Reply
  2. Katherine says

    June 03, 2024 at 6:57 am

    5 stars
    Absolutely loved this recipe for guidance. I seasoned it slightly different and used water instead of broth but it was still cooked perfectly following the instructions. I also seared it at the end as suggested. Thank you!

    Reply
  3. Yoannie says

    January 22, 2024 at 5:55 pm

    It's my 65th bday today and have a 4.6lb leg of lamb in my pressure cooker. Mine however is frozen. Can you tell me the time period of needing to cook from frozen? Above there is no mention if yours was frozen or fresh. Im assuming it's fresh from what the photo's show. I'm the only person consuming this as I'm on a ketovore lifestyle as I'm a metastatic cancer patient and don't eat much carbs to not feed my cancer. Thank you for your assistance with this matter.

    Reply
    • Kristina Tipps says

      January 25, 2024 at 10:53 am

      Hi Yoannie...happy birthday! You are correct that this recipe is for a thawed leg of lamb. With a frozen leg of lamb, I would add 3-4 minutes per pound to the cooking times suggested, based on your preference for doneness. Enjoy!

      Reply
  4. Emily says

    December 25, 2022 at 7:09 am

    5 stars
    Thanks for such a detailed recipe with substitutions and different cook times for different weights and different cooking desires (medium rare, medium, etc.), along with the explanation of why you don’t want to overlook lamb leg vs. lamb shoulder. Recipe was a total winner for our bone-in lamb leg that we cut into two pieces to fit about 5lbs. Perfect holiday dinner option!

    Reply
    • Kristina says

      December 28, 2022 at 3:53 pm

      Hi Emily- thanks so much for the feedback. I am really glad you enjoyed it and hope you do for many years to come!

      Reply
  5. Anonymous says

    April 17, 2022 at 11:29 pm

    13 min/lbs did not work for me, lamb was very overcooked. Probably could do half that time.

    Reply
  6. ANNE ROBINSON says

    December 09, 2021 at 5:05 pm

    5 stars
    I am a bit confused: do you put the lamb on a trivet? No mention until you say to remove the trivet

    Reply
    • Kristina says

      December 10, 2021 at 6:27 am

      Thanks Anne for catching that! I've updated the instructions to include placing the lamb on a trivet or silicone sling. The lamb should be put on a trivet while pressure cooking. It makes removing it easy, and ensures nothing will "burn" to the bottom (if you have an IP that seems sensitive to getting the burn notice).

      Reply
  7. nancy says

    December 09, 2021 at 4:24 pm

    5 stars
    super tender and so flavourful!! no leftovers!!

    Reply
    • Jen says

      September 26, 2022 at 7:57 pm

      5 stars
      Amazing! Lamb was beautiful and succulent, perfectly cooked!

      Reply
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