Slow cooked roast lamb with gravy

Tender juicy roast lamb with the most delicious gravy

Submitted by Jarrah King

Slow cooked roast lamb with gravy

Tender juicy roast lamb with the most delicious gravy
4.67 from 9 votes
Serving: 6
Prep Time 10 minutes
Cook Time 4 hours
Total Time 4 hours 10 minutes

Ingredients
 

  • Lamb leg roast 900g to 1kg (see notes)
  • 2x cups of beef stock
  • 2tsp minced garlic
  • 2x sprigs of thyme or 2 tsp dried thyme
  • 1x sprig of rosemary or 1 tsp of dried Rosemary
  • 1tsp dried parsley
  • Salt and Pepper

Instructions
 

  • Place all ingredients into a slow cooker and cook on high for 3 1/2 to 4 hours.
  • When the lamb meat looks like it's falling off the bone it's ready.
  • I placed my lamb on a tray and covered it with foil to rest for as long as possible and finished it off in the oven on 180deg for 10 mins to warm it back up and to get the outside of the roast crispy but that is completely optional.
  • See the notes section on how to use the delicious stock that's left in your slow cooker for a delicious lamb gravy.

Notes

  • Make sure you check the size of your slow cooker to make sure you purchase a lamb roast that will fit.
  • The stock left over in the slow cooker makes an amazing gravy, I ladled 2 cups into a saucepan and thickened it with my favourite gravy powder. Roast meat gravox powder has given me the best flavour. I use about 4-5 tablespoons and whisk it really well to help prevent those lumps and then add some salt and pepper to finish it off. As soon as its nice and thick its ready to pour all over your tender roast lamb.
Paulene @ Slow Cooker Central

About the Author: Paulene @ Slow Cooker Central

44 Comments

  1. Clare Hall May 3, 2017

    This recipe looked easy enough and amazing to give lamb in the slow cooker a try for my first time. O.M.G this is how I will cook lamb every time now, it was soooo soft and tender and juicy and yummo!!!!!

  2. Clare Hall May 3, 2017

    This recipe looked easy enough and amazing to give lamb in the slow cooker a try for my first time. O.M.G this is how I will cook lamb every time now, it was soooo soft and tender and juicy and yummo!!!!! And the gravy was definitely the cherry on top : )

  3. Lyn Anderson June 4, 2017

    Wow, delicious and every bit of meat fell off the bone. Nothing wasted and very easy to do!?

  4. Fiona MacKenzie June 18, 2017

    Was quite dubious about doing this, but am so look glad I did. Meat was melting in your mouth.

  5. Ellen Lewry July 25, 2017

    Made this tonight for dinner and it was fantastic, we loved it. The gravy was awesome as well, though I did only use half the beef stock it was still more then enough for the 2 of us. This is the way my lamb will be done in future just delish !!

  6. Twistiebrinkley July 31, 2017

    Do you rub the herbs on the lamb or just in with the stock? And do you turn the lamb? Thanks

  7. Absolutely amazing….melts in your mouth

    Definately finish off in oven for 10-15mins

    Will cook over and over

  8. Beautifully tender lamb and the gravy was to die for! Personally i think the beef stock overpowered the lamb a little bit so might try vegetable stock next time. Still giving 5 stars because the recipe is bang on!

  9. Made this Saturday night. Made up my own beef stock with stock cubes so the beef stock wasn’t as over powering and used Tuscan seasoning and garlic granules from the pantry. Was bang on! Usually don’t like lamb but was so tender and delicious it was just falling off the bone. Leftover stock and juice made the yummiest gravy. Deff 10/10 and so easy to do!

  10. Wow made this it awesome , lt was like pulled meat , so tender ,I just put leftover gravy in freezer skimmed fat of top and made gravox as pan juices recipe, and kept juice as a master stock and froze it ,so tender melt in the mouth, thanks for recipe.

  11. Great recipe! Thanks for sharing. I didn’t have any thyme so substituted with marjoram. The lamb was so juicy I didn’t bother with gravy.

  12. Belinda Lake April 30, 2018

    We just love this recipe. Nice, easy and delicious. The gra y made from the stock is great too.

  13. Jessie Clayton June 4, 2018

    I made this last night and it was delicious. Such good flavours and the gravy was a winner. I will definitely be using this recipe again for future roast dinners 🙂

  14. Jackie Hay July 15, 2018

    Delicious ++++
    Entire family enjoyed it. The gravy was yummy.
    Thanks for the recipe Jarrah

  15. Wow. I was a little hesitant since other recipe’s suggest searing, and slitting the leg and massaging ingredients in. I literally just threw the leg in, poured the stock in and counted out the herbs. 5hrs later (1.5Kg leg), it was incredibly good! Blown away!

  16. Omg what can I say this dish is absolutely delicious .. This is a 10/10 for sure it’s definitely my new Sunday night toast..

  17. Omg!! This was amazing, the meat was sooo tender and the gravy wow incredible.

  18. Delicious! Everyone loved it , will be cooking lamb like this from now on . Thanks for the recipe xx

  19. Christine Walker April 19, 2020

    Lamb is quite possibly my favourite roast meat and this was absolutely beautiful. My piece of lamb was a click over 1kg, cooked for 4 hours on the dot. Made the gravy as per recipe which really finished it off. Family loved it, will definitely make again!

  20. Yvette E. May 13, 2020

    This is now my go-to roast recipe, I’ve made it several times and it’s a hit every time. I multiply everything by 2.5 since I do a 2.5kg roast, and cook it for roughly the equivalent of 10-12 hours on low (I usually have some combination of high & low depending on how much time I have!). I use vegetable stock instead of beef as it’s less overpowering. Thank you for this recipe, it’s awesome!

  21. Holly Lynch June 9, 2020

    Loved this recipe! I rested my 1.5kg roast on some peeled and halved potatoes and a couple of whole peeled onions. Cooked on high for 1 & half hours, then 5 hours on low. Lamb was succulent served with pumpkin, sweet potato and beetroot baked in the oven, & steamed veggies. The gravy made with the meat juices was delicious! Will definitely do it again. ?

  22. Amanda Duck June 26, 2020

    A very good recipe and the lamb was absolutely delicious and gravey was nice as well and i used 1 cup of beef stock and 1 cup of chicken stock in the slow cooker and the smell of a leg of lamb and mixed herbs was so good

  23. This is now my go-to roast lamb recipe. It’s so tasty and tender, and the gravy is a complete winner too!

    1. Paulene @ Slow Cooker Central November 17, 2021

      If that’s all you have I’d use it – it’s more a salty flavour booster than actual chicken tasting I find 🙂

  24. Made this today. I used 2.5 kg leg. Flavours were perfect! Also made gravy from the liquid once cooked. Whole family loved it!

  25. Made this yesterday. What a gorgeous dish.! The family gobbled it up, even the fussy child. Makes a beautiful gravy as well.

  26. This look so yum…..
    I have a lamb leg roast of 1.5kg…..
    How long would I need to cook this for??
    ?combination of high & low as I will have plenty of time…
    Making it tomorrow

    1. Paulene @ Slow Cooker Central November 2, 2022

      Hi Karen
      You can cook that all day on low (like 8-10hrs)
      If you need it faster you could cook the first couply hours on high (eg 2hrs high then 5hrs low)

  27. 5 stars
    I followed this recipe but used fresh garlic and Italian herbs. I also added a sprinkle of french onion soup and made gravy with the juices. it’s absolutely delicious

  28. Danielle Cook February 18, 2026

    5 stars
    Another amazing recipe!!!
    I’m not a lamb fan, but my family love it.

    So thought I’d try this recipe. Definitely a hit! Perfectly cooked lamb, and delicious gravy.
    We will definitely be cooking this again.

    I simply put the lamb in the slow cooker and added the ingredients on top. No oven baking required.
    So good!

  29. Kylie Handley March 31, 2026

    5 stars
    Not baking my lamb roast any more. This was absolutely delicious. My mum loved how tender the meat was and hubby couldn’t get enough of the gravy, which was probably the best gravy I’ve ever had!

    1. Paulene @ Slow Cooker Central April 1, 2026

      Hahaha a new convert!! Love the feedback Kylie 🙂

    1. Paulene @ Slow Cooker Central April 21, 2026

      Thank you so much Sue for taking the time to leave your fabulous 5-star review! 🙂

  30. Claire Jenn May 31, 2026

    5 stars
    Absolutely delicious gravy was amazing and lamb just fell off the bone.

    1. Paulene @ Slow Cooker Central June 1, 2026

      Fantastic feedback!! Thanks Claire for taking the time 🙂 🙂

4.67 from 9 votes (4 ratings without comment)

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