Slow Cooked ‘Roast’ Lamb

Submitted by Paulene Christie

Slow Cooked ‘Roast’ Lamb

5 from 7 votes
Serving: 6
Prep Time 5 minutes
Cook Time 8 hours
Total Time 8 hours 5 minutes


  • 1 - 2kg piece of lamb roast
  • 2-3 cloves fresh garlic
  • Sprigs of fresh Rosemary
  • 2 tsp beef stock powder
  • 1/2 cup hot water
  • 1-2 tbsp mint sauce (or a few leaves of fresh mint if you prefer)


  • Make several small slits about 1-2cm deep into the lamb and insert a half a garlic clove and some rosemary sprigs in each hole
  • Place lamb in slow cooker bowl
  • Mix stock powder with water, combine mint sauce with this liquid and pour into base of slow cooker bowl
  • Cook on low for 6-8hrs depending on your machine
  • I spooned the juices from the bowl over my lamb several times over the course of the day to achieve this color but that's optional.
  • Remove garlic/rosemary from meat prior to carving
  • Beautiful served with roast vegetables and gravy made on the pan juices
  • You may also chose to place your roast vegetables under the lamb when you put this dish on if you prefer 🙂

37 thoughts on “Slow Cooked ‘Roast’ Lamb”

  1. This was absolutely beautiful, I did change a few things and added mint jelly in place of the liquid mint sauce. Also added a quartered onion and 5 garlic knobs to the base.

  2. We absolutely loved the lamb done this way. Will always do it this way. BEAUTIFUL ABSOLUTELY BEAUTIFUL

  3. 100% Foolproof and absolutely beautiful. Loved by whole family, including 3yo. Too easy…soo nice! 2.5kg leg was no problem.

    This is also, totally a, “newbie-friendly” recipe, so give it a go!

  4. I used a 2kg shoulder rather than a leg and it turned out AMAZING! I have a very happy husband and inlaws all with full bellies. The gravy was spectacular too. There is just enough leftover meat and gravy for a roast lamb roll for hubby’s lunch tomorrow. Can’t rate this highly enough!

  5. Marlene Zvaigzne

    We absolutely love this roast. I don’t even consider doing it any other way now. Thanks heaps.

  6. MUST TRY! Absolutely delicious, I added 1/2 cup of red wine, cooked on high for for 3 hours and popped in oven for 10 minutes after.

    1. It won’t change the cooking time 🙂 Just be aware that by the end of cooking time they will be sitting in/under the cooking liquids that it will produce.
      So they’ll be lovely and tender and full of flavour but won’t be crisp etc. Some like to crisp up in the oven at the end but I don’t bother doing so 🙂

  7. Hi I was just wandering could you do this on high? If so how long do you think say for a 2kg leg of lamb… just thinking for christmas lunch 8 hours would make for a very very early rise out of bed

  8. Lauren Spackman

    Another amazing recipe, cooked to perfection! We loved the subtle minty taste through the lamb! 1yr old loved it too ??

  9. Juicy, tender, flavoursome, smothered with beautiful gravy from pan juices makes for a delicious ‘Roast’ with very little effort. If you haven’t tried it – give it a go – you won’t be sorry.

  10. Tried this last night! It was incredible! Added a little bit more stock to make gravy with and left out the mint sauce (hubby not a fan of mint sauce) and we were practically licking our plates clean!
    Great for when it is too hot to have the oven on!

  11. Super easy, no greasy mess, no over powering smells just nice aromas through the house.
    First time I cooked I added juices to saucepan gravy. Second cook I added Gravox slurry to SC, this way is the best!
    Amazing roast, absolutely delicious ??

  12. Tiffany Huston

    5 stars
    Made this again tonight. Always great. Meat falls off & is so tender & juicy. Definitely my go to recipe for roast lamb in the slow cooker.

  13. 5 stars
    Loved this recipe! The bone came out clean when I took the meat out of the slow cooker. I used garlic from a jar and dried rosemary as that’s what I had. I also made my own mint sauce from malt vinegar, dried mint and some sugar. Delicious 😋 Thanks for the recipe.

  14. 5 stars
    Made this for our dinner tonight. the meat is tender and melt in the mouth. I don’t have mint sauce so I left it out but still taste really good. I will try it with mint sauce next time. I had beautiful gravy from the juice. Our little family enjoyed our Sunday roast dinner. Definitely be one of our favourites. Thank you for the recipe.

  15. 5 stars
    Wow Made this for tea last night Absolutely amazing. Did not have any garlic clove so used minced garlic.I did put iit un the oven for a few minutes. Will be certainly doing it again. Thans again 😋😋🤩🤩

  16. 5 stars
    O.M.G! First time lamb leg on the bone in the SC. 3kg piece plugged with rosemary, garlic, smothered with minced garlic & mint jelly. Nothing else. No liquid added. It was an inch too long for my SC so I improvised with a foil lid. Turned off after 6 hours on low & let it sit for one hour while i did veges & gravy. We like our lamb pink. This was not pink, however the family vote is it was the best lamb ever; don’t ever cook it any other way. Sprinkled with roast lamb seasoning & under the grill for 10 minutes to get it crispy. Lamb Gravox mixed with juices from SC was the best gravy ever too. Yum.😋

  17. 5 stars
    This recipe is delicious. Made as per recipe adding mint jelly instead of mint sauce. Gravy was made with Gravox and juices. Certainly be making this again sooner than later.

  18. Maria Mihailidis

    5 stars
    Oh my Lord!!!
    This is the best slow cooked roast lamb.
    Will definitely be making it again as hubby asked when am I cooking this again??
    I will increase the mint sauce to double with the stock powder.
    This is a winning roast dinner 🏆🏆🏆
    Thank you Paulene for sharing your recipe 🙏❤️🏆😋

Leave a Comment

Your email address will not be published. Required fields are marked *

Recipe Rating

Scroll to Top