Roast lamb is a timeless dish that never fails to impress. Whether it’s for a special holiday, a family gathering, or a Sunday dinner, this flavorful and tender meat is the epitome of comfort and elegance. The rich, succulent taste of lamb, paired with the aromatic herbs and spices, creates a dish that’s both hearty and refined.
To prepare a classic roast lamb, start with a bone-in leg of lamb or a rack of lamb – both cuts offer tender meat with a fantastic depth of flavor. The key to a perfect roast is in the seasoning. A simple yet delicious blend of garlic, rosemary, thyme, olive oil, salt, and pepper works wonders, infusing the lamb with an irresistible aroma while it roasts. For an added depth of flavor, you can make small slits in the lamb and insert slices of garlic or sprigs of rosemary to ensure that every bite is packed with fragrant herbs.
Before roasting, allow the lamb to come to room temperature. This ensures it cooks more evenly. Coat the lamb with the seasoning mix, massaging it into the meat to enhance the flavor. Place the lamb in a preheated oven and roast it at a high temperature for the first 15-20 minutes to develop a beautiful, caramelized crust. Then, lower the temperature and continue roasting until the lamb reaches your desired level of doneness, whether it’s medium-rare, medium, or well-done.
Roasting lamb is all about balance – achieving that perfect combination of a crispy, flavorful exterior and a juicy, tender interior. For an extra layer of richness, you can occasionally baste the lamb with its own juices or a bit of white wine or broth while it roasts.
Once the lamb is done, let it rest for 10-15 minutes before carving. This allows the juices to redistribute, ensuring every slice is tender and moist. Serve with a variety of sides like roasted vegetables, mashed potatoes, or a fresh mint sauce to complement the rich flavor of the lamb.
Roast lamb is a dish that always feels special but can be surprisingly simple to prepare. Whether you’re a seasoned cook or trying it for the first time, this meal is sure to leave a lasting impression on anyone who’s lucky enough to enjoy it.
Ingredients
- 1.5 kg leg of lamb bone-in
- 2 tbsp olive oil extra virgin
- 4 cloves garlic minced
- 1 tbsp rosemary fresh, chopped
- 1 tsp salt
- 0.5 tsp black pepper freshly ground
Instructions
- Preheat the oven to 180°C (350°F).
- In a small bowl, mix the olive oil, minced garlic, chopped rosemary, salt, and pepper.
- Rub the mixture all over the leg of lamb, ensuring it’s evenly coated.
- Place the lamb in a roasting pan and put it in the preheated oven.
- Roast the lamb for about 1.5 hours or until the internal temperature reaches 60°C (140°F) for medium-rare.
- Remove from the oven, cover with foil, and let it rest for 15 minutes before carving.
I followed the recipe but it came out way too tough! I think I overcooked it. Is 1.5 hours too long? I thought it would be juicy. 😕 2 stars.
1.5 hours should be enough for medium-rare. Maybe the oven was too hot? Can’t blame the recipe completely.
You probably overcooked it, yeah. But sometimes meat can be tough no matter what. I had my share of tough lamb too. 🤷♂️
Absolutely delicious! I made this for my family last weekend and they couldn’t stop raving about it. The garlic and rosemary really shine! 5 stars!
That sounds amazing! I love lamb, but I always thought it would be too hard to make. Maybe I’ll give it a try now!
But wait, isn’t lamb kinda greasy? I dunno, seems like too much fuss for meat. I’d rather just grill chicken.
This lamb was OK, but I’m used to making it with a bunch of spices… This felt a bit plain. Next time, I might add some chili flakes! 3 stars.
I don’t know about this. My lamb was dry and tough. Maybe I overcooked it? Not sure I’ll try it again.
This recipe is a game changer! The lamb turned out so juicy and flavorful. Will definitely make it again!
180°C seems a little low? My lamb browned slow, but the inside was still juicy. Next time I might crank to 200°C for the first 20 minutes.
Roast lamb? Nah, I only do beef. Pass.
I followed the instructions but it was too salty for my taste. Maybe I added too much salt? 🤔
Yummy! I added some lemon zest for extra zing. Will make again for sure!
My thermometer said 60°C and I freaked out, like is this safe?? Then it was fine and tender. Guess I overthink things.
Lol I’d freak out too 😅 60°C sounds scary until you remember you’re aiming for medium-rare. If it turned out tender and it was right on temp, you’re good. Resting also helps a ton.
Delicious and easy to follow! I’m no chef but I nailed this one!
Lamb is so tough to cook right. Mine came out dry. I’m skeptical of this recipe!
This roast lamb was the star of our family dinner! Everyone loved it!
Wow, easy and flavors were on point. Five stars.
Isn’t 60°C too low? I thought lamb needs to be higher temp? Only chefs know I guess.
Good flavor, but I think 1.5 hours was a bit short for my oven. I ended up closer to 1 hr 45 and it still hit the temp I wanted. Still, the seasoning ratio is solid.
Honestly the simplest recipe, and it tastes like I tried way harder than I did. Would make again for sure.
Garlic + rosemary is always a winner. I used dried rosemary because I was out of fresh and it was still good.
Can someone explain why there’s garlic? Isn’t that like a big no for lamb???
Too salty for my taste. I might cut back on the salt next time.
I totally get what you mean! Salt can really overpower the flavors. Maybe try using herbs instead for seasoning next time!
I followed it pretty much exactly, but my lamb was more medium than medium-rare. I’m not sure if my thermometer was off or if the leg was thicker. Either way, tasty though.
I don’t even like lamb usually but this was pretty good. Might have to try more lamb recipes now.
I’m glad you liked it! Lamb can be tricky, but this recipe really brings out the flavor. Give it another try!
I dunno, lamb kinda tastes like the farm to me. Not sure I’d try it again. But if you liked it, great!
I don’t know, the timing seems off. Mine came out a bit tough. Might be my oven though!
I substituted the lamb for chicken LOL. Still was good! Maybe should be called roast chicken.
The flavor was great, but I wish the timing was a bit more specific. Mine took closer to 1 hour 50 minutes depending on thickness.
Totally agree—“about 1.5 hours” feels too vague for something like lamb. I usually go by internal temp + how thick the roast is. Good catch on yours taking ~1h50!
Mine took like 2 hours the first time too. I think thickness and whether the lamb is room temp makes a big difference. Honestly the temp check is the only part that can’t lie 😅
Meh. Just tasted like meat. I expected something more flavorful. 2 stars.
Lamb? No thanks. I prefer beef. But my neighbor loved it so it must be good.
I totally get that! Beef is a classic. But this lamb recipe might change your mind! 😄
60°C?? That sounds undercooked—my mom would not allow it. But I tried it with a thermometer and wow… it was actually right.
I actually used a leg of goat instead and it turned out fabulous!
I must’ve messed up somewhere. Mine came out way too dry. I followed the instructions exactly.
I dunno, mine was juicy! Maybe your oven runs too hot? Or try basting it next time.
Sorry to hear that! Sometimes lamb can dry out if it’s not enough fat or if it’s cooked too long. Did you use a meat thermometer?
How long do I cook it for if I wanna well done? My family likes it like that.
Wait, do you really need to let it rest before carving? Seems like a waste of time.
Letting it rest is super important! It helps keep the juices in, otherwise, it’ll be dry. Trust me, it’s worth the wait!
This roast lamb was absolutely delicious! So juicy and flavorful, my family loved it!
This recipe was awesome! The lamb turned out so juicy and flavorful. My family loved it!
Sounds delicious! I’m glad it turned out well for you. I’m gonna try this recipe next!
Good, but I prefer beef. Lamb just isnt for me.
Yummy! But why does everyone say lamb is hard to cook? This was simple!
I completely agree! Lamb is super easy to cook, just follow the steps. I’m glad it turned out tasty for you!
Yeah, I find it confusing too. People overthink it, I guess? But it’s just meat. Gotta watch the temp tho!
I used dried rosemary because I didn’t have fresh (oops) and it was still decent. Could’ve been more fragrant. Salt and pepper ratio felt okay.
I made this but forgot to preheat the oven. Oops, guess it’s a cold lamb tonight! 😂
Cold lamb sounds ew, how does that even taste? You might as well just eat it raw! 😂
Haha, at least you made a funny story out of it! But seriously, don’t forget to preheat next time! 😉
This was an amazing recipe! The lamb turned out so tender and juicy. Definitely a winner at our family dinner!
Yum! Best dinner ever! 😍
Yummm! My family devoured this! A bit too much rosemary for my taste though.
Yummy! My kids loved it! I just threw some carrots in the pan too and they turned out delish!
Simple and delicious! Used some mint jelly on the side and it was perfect. Thanks for sharing!
Made this last night—garlic + rosemary smelled incredible. Mine hit closer to 62°C at 1.5 hours, but it was still nicely pink. Resting time really matters!
62°C at 1.5 hours sounds about right for a thicker leg. I do 180°C too and usually pull it around the same range, then rest. Nice pink!
Yes!! Garlic + rosemary on lamb is unreal. Mine always comes out way better when I don’t rush the rest—15 minutes is key. Great call on the 62°C too.
Really easy to make! Didn’t have rosemary, used thyme instead and it still tasted great. 👍
This roast lamb recipe was to die for! So juicy and flavorful. Can’t believe I made it myself!
Lamb is so underappreciated! Really loved the flavors in this. Will make again for sure!
This roast lamb recipe is fantastic! I followed it exactly and it turned out perfectly. So juicy and flavorful!
I’m glad it worked out for you! This recipe is a keeper! 😋
Too much garlic for my taste. Next time, I’ll cut it down a bit.
I’m not sure what I did wrong, but mine was pretty tough. Maybe I overcooked it? I followed the temp though.
Best lamb ever! My grandma used to make this, brought back good memories. ❤️
It was good but took longer than the recipe said. Mine was overdone.
Delicious!!!
I’m not a fan of lamb. Should’ve tried chicken instead.
Absolutely delicious! I doubled the garlic and added some lemon juice for a zing. Will make again!
Not sure what went wrong but it came out dry. Maybe I cooked it too long.
I think using dried rosemary would work too, right? Not everybody has fresh herbs at hand.
Dried rosemary should work, but it won’t taste the same! Fresh herbs are the best for flavor.
Roast lamb? More like roast disappointment. The meat was tough and dry. 1 star just for the smell.
Sorry to hear that! I thought the recipe was pretty straightforward. Maybe your lamb just needed more cooking time?
Easy to make if you follow instructions. I didn’t have fresh rosemary so I used dried, still okay.
But like, how can you call it roast lamb if you don’t use fresh rosemary? 🤔
I also used dried herbs before and it turned out great! Not much diff with fresh if you ask me.
I was skeptical about the garlic but wow! It gave it a nice kick! Will make again 🙂
Omg this was awesome!!! 🤤 Can’t believe how easy it was, never thought it would taste this good.
So glad you loved it! 😉 It’s one of my favorites too!
180°C for leg of lamb? That seems low to me. I usually go hotter and sear first. Not saying it’s bad, I just don’t trust the timing.
So good, just add some mint sauce and it’s perfect! Yum!
I thought it would be hard to cook but it was pretty simple!
Hard? It’s just meat with some stuff on it, lol. Anyone can do it if they try!
I’m glad to hear that! It really is easier than it looks. Did you enjoy the flavors?
I was a bit skeptical at first, but this actually was pretty good. 1.5 hours seems long tho; maybe should’ve checked sooner.
Too much garlic for my taste. Might skip that next time.
I thought lamb was supposed to be super fatty? It was actually pretty lean. Anyone else notice that?
Easy to make, but I used dried rosemary and it didn’t taste as fresh. Still nice overall.
I dunno… dried stuff just ain’t the same. $@!# yeah, it’s easy but fresh is best! You’d be missing out otherwise!
Fresh rosemary definitely makes a difference! I’m glad you still enjoyed it though. Maybe give it another shot with fresh herbs next time!
Easy to make and tastes great! Will make again for sure.
Why is everyone raving? This was way too garlicy for my taste. My family didn’t like it either. Never again!
I love garlic, so this recipe sounds amazing to me! But I get that not everyone likes it strong. Maybe you can use less next time?
Lamb was tasty, but 1.5 hours for 1.5 kg seems too general. Also, I forgot to mince garlic fine and it got a bit punchy. Still ate it all though 😅
Perfect roast, served it with mint sauce and it was amazing!
I followed it pretty much exactly, but 60°C at 180°C felt a little fast—maybe my oven runs hot. I ended up roasting another 10-15 minutes and it turned out good.
Leg of lamb bone-in—sure, if you want to wrestle a pan of meat for an hour and a half. Delicious though. Also I forgot to mince garlic and it was more like chunky garlic confetti.
This is the first time my lamb didn’t come out dry. The rub actually stuck and the rest period mattered. Will repeat.
Made this tonight—so easy and the garlic-rosemary combo is perfect. I pulled it at about 62°C and it was beautifully medium-rare. Resting time helped a lot.
Yes! The garlic-rosemary rub is legit. I always forget how much the rest time matters until I do it—so glad yours came out medium-rare.
62°C? Wow that’s closer to medium than I’d think. I’ve cooked lamb before and 60°C sounds kinda risky to me, but if it tasted good then fair enough lol.
Hard to mess up lamb, right? But this one actually requires a lot of attention, maybe a 3.
I totally agree! Lamb needs a bit of care to get it just right. But once you nail it, it’s so worth it!
Not bad, but 60°C for medium-rare felt too low to me—still turned out a bit pink and juicy though. I’m not sure I trust meat temps.
Totally get you—60°C sounds low if you’re used to beef temps. But lamb can be forgiving; if it’s still pink and juicy after resting, that’s usually a good sign. Do you calibrate your thermometer? Those can be wildly off.
I don’t trust temps at all 😅 I always go by feel and time. Last time my “medium rare” turned out pinkish and I was like… cool? I guess 15 min rest matters a lot too.
Meh. I expected it to taste more “roasty.” It was good, but kind of basic compared to the way my aunt does it with mustard and breadcrumbs.
I followed it exactly and felt like it was a bit too salty. Also, my lamb was browner than the photo in my head… maybe my oven runs hot.
This turned out amazing—juicy lamb with that garlicky rosemary punch. Resting it 15 minutes really helped.
So glad it worked! The resting makes a huge difference for lamb—keeps it juicy. 😄
I messed up and forgot to mince the garlic fine, so I had big chunks. It was still edible, just kinda spicy in spots 😅
Not bad, but 180°C seems too low—mine barely browned. I might crank the oven or broil at the end next time.
180°C seems low? I usually blast mine at 220°C to get a crust, then lower. Still, the garlic + rosemary mix sounds legit.
Pretty solid and simple. I’m always skeptical of “exact” times, but the temp target (60°C) is smart. Would do it again.
Love how simple this is. The rest time + temp target is the part I always forget, so thanks!
“60°C for medium-rare” seems a little low? I usually go more like 63-65°C, but maybe my oven runs hot. Might try next time.
This came out so tender! The rosemary-garlic rub smells incredible while it roasts. I rested it the full 15 minutes and the juices stayed put—would totally make again.
So glad you mentioned the full 15 min rest—mine was still juicy when I did that too. The garlic-rosemary smell is unreal.
Wow! So good.
The flavor is solid, but 60°C for medium-rare felt a little low to me. Mine was closer to medium after resting.
Yeah, 60°C for medium-rare feels a bit on the gentle side. Lamb can carry over heat while resting, so if you’re closer to medium after 15 min, that makes sense.
Made this last weekend—so fragrant from the rosemary and garlic. Mine took closer to 1h50 though, depending on the thickness. Resting helped a lot.
I followed it pretty closely, but I think 1.5 hours was a bit short for my roast. Still tasty though. Next time I’ll check the temp sooner.