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Home Collections Roasts

Slow Cooker Roast Lamb Leg

By:Nagi
Published:16 Nov '17Updated:18 Aug '23
477 Comments
Recipe v Video v Dozer v

Hands down the easiest way to cook lamb leg, this Slow Cooker Roast Lamb Leg is fall apart tender and incredibly succulent. 2 minutes prep, pop it in the slow cooker, brown it briefly in the oven while you make a killer gravy using the lamb juices. A roast made for sharing with family and friends!

After more lamb leg ideas? Browse all my roast lamb recipes!

The most succulent and easiest lamb leg ever, this Slow Cooker Roast Lamb Leg takes minutes to prepare. The gravy is incredible! recipetineats.com

Slow Cooker Roast Lamb Leg

In my world, there are only 2 ways to cook a leg of lamb: either perfectly cooked so it’s pink and juicy inside (see my classic Roast Lamb with Gravy), or long and slow so it’s fall apart tender.

There is no in between!

Well, there is. But it’s dry and no amount of gravy can salvage it. It’s also very sad. 😂

Fall-apart-tender slow cooked lamb leg can either be done in the oven or in the slow cooker. Click here for the slow roasted oven recipe, this is the slow cooker version!

The most succulent and easiest lamb leg ever, this Slow Cooker Roast Lamb Leg takes minutes to prepare. The gravy is incredible! recipetineats.com

I know it sounds counter-intuitive to use the words “roast lamb” and “slow cooker” in the same sentence. But actually, it’s the right description for this recipe because it is cooked in the slow cooker and finished off in the oven to get that beautiful browning. And also to reheat it, in case the slow cooker finished and it was sitting on the warm function for a while.

The most succulent and easiest lamb leg ever, this Slow Cooker Roast Lamb Leg takes minutes to prepare. The gravy is incredible! recipetineats.com

My slow cooker is a standard size round one and I was able to fit in a 1.9kg / 3.8lb lamb leg purchased from the grocery store (Woolworths in Australia) because the shaft of the leg comes cut so it can be bent to fit into the slow cooker. Vereeee practical!

I’ve used a small full lamb leg here, but it can easily be made with half lamb legs which don’t have the shaft so they will easily fit inside a standard slow cooker.

And of course, if you have one of those oval shaped slow cookers, you could make this with a full size lamb leg! After all, arguably one of the best things about roast lamb are the leftovers. Sandwiches with lamb and gravy. SO GOOD!!!

The most succulent and easiest lamb leg ever, this Slow Cooker Roast Lamb Leg takes minutes to prepare. The gravy is incredible! recipetineats.com

Gravy for Roast Lamb

And while it’s browning in the oven, we make a quick gravy using the juices in the slow cooker.

No need to deal with the clunkiness of making the gravy in a roasting pan, like you do when you roast lamb in the oven. Nope, this is a super simple one made in a saucepan using butter instead of the drippings in the roasting pan. And of course the juices left in the slow cooker.

All. That. FLAVOUR!

The most succulent and easiest lamb leg ever, this Slow Cooker Roast Lamb Leg takes minutes to prepare. The gravy is incredible! recipetineats.com

The most succulent and easiest lamb leg ever, this Slow Cooker Roast Lamb Leg takes minutes to prepare. The gravy is incredible! recipetineats.com

This is the sort of food made for sharing with family and friends. I know there’s something grand about placing a whole lamb leg on the table as a centrepiece. But a pile of incredibly juicy, tender lamb is just as impressive in my books – and there’s no need to pass the plates over and wait for it to be carved. Just dive right in! – Nagi xx


More Roast Lamb Recipes

I love a good roast lamb – so I’ve shared a few over the years!

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Roast Lamb Leg with Gravy
Greek Butterflied Lamb Leg on a platter, ready to be shared
Greek Butterflied Lamb Leg
Slow Roast Leg of Lamb on a white plate with part of the meat pried off to show how tender it is
Slow Roast Leg of Lamb
Slow Roasted GREEK Leg of Lamb - Tender fall apart lamb made the Greek way! Super easy.
Greek Slow Roasted Leg of Lamb
Slow Cooked Lamb Shawarma is meltingly tender and has the most heavenly fragrance. Quick to prepare, sensational for gatherings! recipetineats.com
Slow Cooked Lamb Shawarma
Slow Cooked Lamb Shoulder in a baking pan, fresh out of the one
Slow Cooked Lamb Shoulder
Slow Cooked Lamb Shoulder in a baking pan, fresh out of the one
Roast Lamb

Slow Cooker Roast Lamb Leg
Watch how to make it

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Slow Cooker Roast Lamb

Slow Cooker Roast Lamb Leg with Gravy

Author: Nagi
Prep: 5 minutes mins
Cook: 10 hours hrs
Total: 10 hours hrs 5 minutes mins
Dinner, Slow Cooker
Western
5 from 123 votes
Servings5
Tap or hover to scale
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Recipe video above. The easiest, most succulent roast lamb you'll ever have! This is not the carving sort of lamb, you can just tear the meat off using tongs.

Ingredients

  • 2.0 kg / 4 lb lamb leg, bone in (Note 1)
  • 1 tsp salt
  • black pepper
  • 2 large garlic cloves , minced
  • 1 1/2 tsp dried thyme OR rosemary (or 2.5 tsp finely chopped fresh)
  • 1 tbsp olive oil
  • 2 cups / 500ml beef stock (or chicken) (Note 2)
  • 1 sprig rosemary , optional

Gravy:

  • 50 g / 3 tbsp butter
  • 3 tbsp / 40 g flour (any white)
  • 2 cups / 500 ml braising liquid from slow cooker , strained
  • Salt and pepper

Instructions

  • Place lamb in slow cooker or on work surface. Sprinkle with salt, pepper, thyme or rosemary and garlic. Drizzle over oil, then rub on both sides.
  • Pour beef stock into slow cooker, add sprig of rosemary (if using).
  • SLOW COOK on low for 10 hours, or pressure cook on high for 1 hour 40 minutes. (See oven version here)
  • The lamb should be tender enough to pull off with tongs, but still holding together (just!). Carefully remove lamb from slow cooker and transfer to tray.
  • Drizzle lightly with oil (any). Bake at 200C/390F for 20 minutes or until browned. Remove and rest for 10 minutes before serving with gravy.

Gravy:

  • Strain liquid in slow cooker into a bowl - you will have more than the 2 cups of broth you added, I usually have over 3 cups. Measure out 2 cups of liquid, reserve remaining liquid just in case.
  • Melt butter in a saucepan over medium heat. Add flour and cook for 1 minute.
  • Add a bit of liquid, mixing as you go so it dissolves. Then add remaining liquid. Whisk if there are lumps.
  • Increase to medium high heat and cook, stirring regularly, until thickened to your taste. Use remaining liquid to thin if required.

Recipe Notes:

1. Make sure you get a lamb that fits in your slow cooker! I have a standard size round slow cooker and I was able to fit in a 1.9kg/3.8lb lamb leg which had the shaft partially cut so it bends which I got from Woolworths. In Australia, you can purchase half lamb legs (also Woolworths) which come without the shaft /bone which will fit in easily into a standard slow cooker. If you have an oval slow cooker, you can probably fit in the lamb leg even without the shaft cut.
A 2kg / 4 lb bone in lamb equates to about 1.5kg/3lb boneless lamb, same cook time.
If your lamb is about 1 - 1.25kg / 2 - 2.5lb, you can reduce the cook time to 8 hours. If your lamb is larger than 2.25kg /4.5lb, increase it to 12 hours.
2. If you use chicken broth, the gravy is slightly lighter in colour. The reason I use broth and not just the lamb juices is that lamb juices are very...well, LAMBY. 🙂 Too lamby for gravy. I find that 2 cups of broth combined with lamb juices = perfect gravy flavour.
3. OVEN: See the Slow Roasted Lamb Leg recipe!
4. Servings - 2kg/4lb bone in is about 1.5kg / 3 lb of meat which reduces to about 1.2kg/2.4lb of meat after cooking. This serves 4 generously or 5 for normal servings (in my opinion!).
5. Nutrition - This is a conservative calculation because it doesn't take into account the lamb fat and drippings that are discarded (which accounts for plenty of the calories!). Unfortunately I don't know how to estimate that, so I've not made an adjustment to exclude discarded fat.

Nutrition Information:

Serving: 357gCalories: 747cal (37%)
Keywords: Roast Lamb Leg, Slow cooker roast lamb, Slow Roast Leg of Lamb
Did you make this recipe?I love hearing how you went with my recipes! Tag me on Instagram at @recipe_tin.

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I believe you can make great food with everyday ingredients even if you’re short on time and cost conscious. You just need to cook clever and get creative!

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477 Comments

  1. Eileen says

    April 17, 2017 at 10:21 am

    5 stars
    Ohhhh, Nagi! I made your slow cooker lamb… it was a bit bigger than 2.5kg, more like almost 4kg! To fit it in, hubby had to bring out a saw to take off a bit of bone. So I did the recipe on high for six hours. Was magnificent. Holding together, but just about to fall off the bone and then 20 minutes in the oven, and it looked amazing. I’ve still got a whole heap of sauce and juice, which I might convert to soup today (but I’m still full from last night). I paired it with your Truly Crispy potatoes. It was the first time I managed to pull it off… I’ve tried other methods before, but I think you nailed it by putting the oil in the oven to almost smoking point. Done in 30 minutes! We were sooooo full last night. Thank you for the fail-proof recipes and making our Easter! xxxx E

    Reply
    • Nagi says

      April 18, 2017 at 9:29 am

      OMG I just BURST OUT LAUGHING!!!! THAT IS GOLD – I just have the most awesome vision of your husband sawing the bone off – BA HA HA!!! I am so thrilled to hear you enjoyed this so much, thank you for coming back to let me know! N xx

      Reply
  2. Lesley Smth says

    April 17, 2017 at 6:22 am

    5 stars
    Wow what a fantastic recipe for lamb. I cooked it today for Easter for 6 of us. Every plate was empty & everyone loved it. Thank you

    Reply
    • Nagi says

      August 23, 2017 at 8:14 pm

      Thanks for the great review Lesley! I’m SO pleased to hear you enjoyed it! N xx

      Reply
  3. Alison says

    April 16, 2017 at 11:58 pm

    5 stars
    Thanks for such a fantastic recipe! The lamb I bought was too big for my slow cooker so I used the instructions for the oven and it worked out perfectly! We all loved the gravy too. Happy easter!

    Reply
    • Nagi says

      April 17, 2017 at 6:28 am

      WHOOOT! So pleased you enjoyed it Alison, thanks for letting me know. Happy Easter to you too! 🙂 N xx

      Reply
  4. Renee says

    April 16, 2017 at 6:42 pm

    My family has just enjoyed this lamb dish on Easter Sunday. What a beautiful dish!! When it was cooked, it didn’t look like it was falling off the bone but when I took it out of the slow cooker the shank and parts of the lamb started to come away so I could see that it was going to be beautiful. The gravy was delicious too so all in all a great recipe and one I will definitely be making again and again.

    Reply
    • Nagi says

      April 17, 2017 at 6:30 am

      I’m so pleased to hear that Renee! Thank you for letting me know – and HAPPY EASTER to you and your family! N xx ❤️

      Reply
  5. Heather Miller says

    April 15, 2017 at 12:36 pm

    Hello! Thanks for posting this. I am from America and I have only had lamb a few times in my life, always in a restaurant. It’s been either amazing or horribly dry so I have never aspired to try it at home.

    I’m going to give this a shot on Easter though! I found a leg of lamb and got the butcher to cut as you suggested. Can’t wait to see how it turns out!

    Reply
    • Chris says

      April 17, 2017 at 6:11 pm

      5 stars
      Great recipe, worked out brilliantly! The only change I’d make is half the salt. I used vegetable stock (all we had) and the gravy was a little to salty, however, when poured over the lamb it was still grate. I also threw in some rosemary as I love it with lamb. Definitely a “keeper” recipe.

      Reply
      • Nagi says

        April 18, 2017 at 9:32 am

        I’m so thrilled to hear that Chris! Thank you for letting me know! N xx PS Yes reduce the salt if you think it’s too salty for your taste, I personally find it’s the perfect amount, bearing in mind that most stays on the lamb 🙂 And rosemary + lamb = purrrrrfect

        Reply
    • Nagi says

      April 16, 2017 at 6:30 pm

      Hi hope you love it Heather! Slow cooker is guaranteed to make a succulent lamb leg!

      Reply
      • Heather says

        April 17, 2017 at 9:58 am

        5 stars
        It was delicious! THank you for introducing us to lamb!

        Happy Easter!

        Reply
        • Nagi says

          April 18, 2017 at 9:21 am

          I’m so thrilled to hear that Heather! Thank you for letting me know! N xx

          Reply
  6. amber says

    April 15, 2017 at 5:44 am

    5 stars
    we L.O.V.E. your roasted lamb shoulder! will make this for easter tomorrow BUT … is there difference between the 10-hr slow-cook version VERSUS 1.5-hr pressure-cooker version? i’d like to save time with he pressure cooker BUT if that sacrifices anything, i’ll happily slow-cook for 10 hours. thank you!!!

    Reply
    • Nagi says

      April 15, 2017 at 7:03 am

      Hi Amber! I think the difference is pretty small but there is definitely a difference. Slow cooking = more time for the flavour to drip and meld into the flesh of the lamb. But once the gravy is poured over, there is little difference in my opinion!

      Reply
  7. Marg says

    April 14, 2017 at 8:36 am

    5 stars
    hi Nagi, made this yesterday (oven version) – it was/is delicious! and the gravy was declared “best ever”. Thanks for sharing this recipe. Happy Easter.. hope the bilby is generous!

    Reply
    • Nagi says

      April 14, 2017 at 9:59 am

      Fantastic! So pleased to hear that Marg, thank you for taking the time to come back and let me know! N xx

      Reply
  8. Ntombi Dube says

    April 12, 2017 at 3:52 pm

    This leg will just be good for my visitors on one of the Easter’s holidays. Thank you so much for this Nagi!!!!

    Reply
    • Nagi says

      April 14, 2017 at 6:58 am

      YES IT WILL!! And stress free cooking for you!! 🙂 N xx

      Reply
  9. Lyn says

    April 12, 2017 at 9:55 am

    Last year I made your roast lamb and gravy…can’t wait to try this….stress free…can’t beat that! Cooking your greek meatballs for grandkids tomorrow night..wish they weren’t leaving before Easter…:)

    Reply
    • Nagi says

      April 14, 2017 at 6:56 am

      Oh BOO to your grandkids leaving 🙁 I bet they loved you meatballs though! Oooh, I do love a good classic roast lamb, I think that’s what we’re having for our Easter dinner because the lamb leg I got is giant and there is no way it will fit in a slow cooker!

      Reply
  10. Gillian says

    April 11, 2017 at 6:06 pm

    Hi Nagi, did you give Dozer the bone from the lamb? Reason for stowaway?!!

    Reply
    • Nagi says

      April 14, 2017 at 6:51 am

      Maybe it’s because I DIDN’T that he is thinking of running away? ?

      Reply
  11. The Modern Proper says

    April 11, 2017 at 2:39 pm

    Oh, yes! This roast lamb looks perfect for Easter.

    Reply
    • Nagi says

      April 14, 2017 at 6:49 am

      YES YES YES!!!

      Reply
  12. Vera says

    April 11, 2017 at 2:25 pm

    Yumi! Just in time for Easter! And weather i s Cooking Down. What did YOU do to Dozer? He didn’t GET roast lamb Or is IT somthing better on that boat?? Have good Easter with your Mum! Put Breaks on chocki….

    Reply
    • Nagi says

      April 14, 2017 at 6:48 am

      Of COURSE he got lamb. You know full well I couldn’t deny him – ha ha ha!!

      Reply
  13. Maureen | Orgasmic Chef says

    April 11, 2017 at 9:16 am

    5 stars
    With all the snazzy superliners on Sydney Harbour, surely the Dozer could do better than that. He’s probably pissed off he didn’t get enough of this gorgeous lamb.

    Reply
    • Nagi says

      April 11, 2017 at 1:20 pm

      Considering LEAVING ME??? For cruel and unusual torture? 😉

      Reply
  14. Krisanne says

    April 11, 2017 at 7:17 am

    5 stars
    Hi Nagi, This recipe is a must do but I have a Electric Pressure Cooker so would you know the cooking time for that as I would love to try it as I am new to the Electric Pressure cooker and no Recipe book came with it unfortunately. Cheers and Happy Easter to your and Dozer xxx

    Reply
    • Nagi says

      April 11, 2017 at 1:04 pm

      Hi Krisanne!This works beautifully in an electric pressure cooker, the directions are in the recipe. 🙂

      Reply
  15. Malika A. Black says

    April 11, 2017 at 6:49 am

    My Gosh that is mouthwatering! This would be great with mashed potatoes and some grilled veggies.
    Cooking the meat in a slow cooker before finishing it in the oven is a great idea. In North Africa, there is a traditional way to cook lamb: by steaming it! I
    I love your recipes Nagi! Thanks!

    Reply
    • Nagi says

      April 11, 2017 at 1:03 pm

      Steaming! Wow! That’s actually really terrific, I bet it keeps it beautifully moist!

      Reply
  16. Henry Kurzynski says

    April 11, 2017 at 4:54 am

    Hello Nagi
    This lamb shank recipe reminded me about your rosemary garlic grilled lamb chops, I have been holding off on grilling until the weather got decent here in Chicago. So we had super weather finally hit.
    I grilled 2 rib racks, one with your marinade and one rack with my favorite marinate which is simply pineapple juice and fresh thyme, both marinated overnight.
    Both turned out really great, but the pineapple marinade made the chops a little more tender and a little less lamby tasting. I hope you test this marinade and create a recipe because I think your readers will be intrigued.

    Reply
    • Nagi says

      April 11, 2017 at 1:02 pm

      Pineapple juice marinade! What a delightful idea, I will try it next time I have pineapple juice, thank you for the idea! 🙂

      Reply
  17. Phil says

    April 11, 2017 at 3:48 am

    5 stars
    This looks delicious. I’ll be thinking about giving it a try sometime over the Easter weekend if I have the time. Easter day is our local vintage vehicle museum open running day and weather permitting I want to go to that so maybe bank holiday Monday will be he day for it. With it I will have “charlotte” new potatoes and mint sauce and maybe Yorkshire puddings (although traditionally they should go with roast beef. Also I will do veggies, probably carrots and one other. Usually I don’t bother with gravy but the one you’ve made looks so good how can I resist, especially if I do the yorkies? Sods law, two supermarkets have been doing special offers on lamb this past weekend. I bet they will have finished now. Finally, thanks Nagi for the UK weights with the recipe.

    Reply
    • Nagi says

      April 11, 2017 at 1:01 pm

      Hi Phil! I do hope you try it, it’s pretty amazing! Slow cooking lamb leg is fantastic 🙂 And YES to Yorkshire puds! I was actually going to share it as a side this week, but thought I’d save it for a classic British Feast week 🙂 Roast beef, yorkshire pudding, eton mess for dessert? Mmmmmm!! Or maybe bread & butter pudding!

      Reply
  18. Tricia says

    April 11, 2017 at 3:40 am

    Lovely easy lamb recipe for any occasion, your recipes are always so full of useful and
    helpful information, Thanks Nagi.

    Reply
    • Nagi says

      April 11, 2017 at 1:00 pm

      Thanks Tricia! And you’re right, I shared this thinking about Easter but I was telling a friend at the park yesterday that this is perfect for busy weeknights too! 🙂

      Reply
  19. ginger says

    April 11, 2017 at 3:29 am

    hahaha, dozer! there must be some food on that boat! but could you at least pick a yacht with food?? lol.

    Reply
    • Nagi says

      April 11, 2017 at 12:59 pm

      OMG so true so true… I didn’t think of that! The poor guys lunch must be on the boat, THAT’s why he wanted to get on!!!!

      Reply
  20. Wei @ Red House Spice says

    April 11, 2017 at 2:15 am

    Oh! This is just what I need for Easter! Will have a try in the oven. Do you mean 2 cups of stock + 2 cups of water? Thank you Nagi!

    Reply
    • Nagi says

      April 11, 2017 at 12:57 pm

      Yes! Did I write something different?? Duh. 🙂 Will check! N x

      Reply
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