Roasted Leg of Lamb
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This recipe is so good yet it doesn’t require too much time, effort or ingredients. It’s easy & fool-proof, even for you first-timers!
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If you haven’t cooked a leg of lamb before, don’t be intimidated. I know it seems incredibly daunting but it’s so much easier than you think. This roasted leg of lamb recipe here is fool-proof and fuss-free, I promise. And you don’t even need a long drawn-out ingredient list.
Nope, the ingredient list is super simple here.
Ingredients
Leg of lamb
Bone-in will have extra flavor.
Garlic
Adds a lovely buttery flavor profile.
Olive oil
This will serve as the rub for your lamb. We recommend using good quality olive oil here such as California Olive Ranch (our favorite).
Fresh herbs
Chopped fresh rosemary and thyme are common pairings with leg of lamb but you can also improvise with some of your favorite herbs.
Dijon
Adds a sharp, tangy flavor to your lamb rub, balancing out the rich taste of the lamb meat.
Salt and pepper
Season generously! 1/2 – 1 teaspoon kosher salt is recommended per pound of lamb.
Now I left the shank on for it’s dramatic presentation but you can easily purchase one with the shank removed – there’s no advantage here except for the aesthetic eye for serving.
Marinating is also not needed here – you’ll see that the simple garlic mixture rub will bring in so much flavor. And it’s sure to be a crowd-pleaser for your Easter holiday or next dinner party, impressing all your guests with such minimal effort. It also pairs perfectly with these mini hasselback potatoes!
tips and tricks for success
- Go to a reputable butcher. Cooking such a large cut of meat can be daunting! We recommend purchasing a leg of lamb that is preferably grass-fed and organic. Ask for market weight, avoiding baby lamb or mutton. The butcher can also trim the excess fat.
- Bone-in is ideal. Bone-in will have extra flavor, but if you are nervous about carving and serving, boneless can be used.
- Fresh herbs are best. Although you can certainly substitute dried herbs, fresh herbs are key here, delivering the best kind of flavor.
- Use an instant-read thermometer for the most accurate results. Check your lamb halfway through cooking, inserting through the thickest part of the meat but avoiding the bone. The internal temperature should reach 135°F for medium.
- Let your meat rest. As with any large cuts of meat, let your lamb rest for at least 15 minutes prior to serving, allowing the juices to redistribute – this will allow for maximum flavor and juiciness.
what to serve with leg of lamb
Roasted Leg of Lamb: Frequently Asked Questions
Bone-in will have more flavor, but boneless will be much easier to carve. If purchasing boneless, we recommend purchasing oven-safe kitchen twine as the lamb will need to be tied together.
Because a leg of lamb is so naturally tender, marinating is not necessary.
Absolutely! But because dried herbs are often more potent/concentrated than fresh herbs, you need less when using dry. The correct ratio is 1 tablespoon fresh herbs to 1 teaspoon dried herbs.
This really depends on personal preference. We recommend medium (135°F, 20 minutes per pound) but you can also cook to rare (125°F, 15 minutes per pound), medium well (145°F, 25 minutes per pound) or well done (155°F, 30 minutes per pound).
Yes! Leftover lamb can be stored in an airtight container for 1-2 days in the fridge, and frozen in slices wrapped in aluminum foil, reheating at 350°F (still wrapped) until warmed through.
Here is a foolproof step-by-step video guide for a stress-free leg of lamb!
Roasted Leg of Lamb
Ingredients
- 1 (5 pound) bone-in leg of lamb, trimmed
- 4 cloves garlic, minced
- 1 tablespoon olive oil
- 1 tablespoon chopped fresh rosemary
- 1 tablespoon chopped fresh thyme leaves
- 1 tablespoon Dijon mustard
- 1 tablespoon kosher salt
- 2 teaspoons ground black pepper
Instructions
- Preheat oven to 350 degrees F. Line a shallow roasting pan with aluminum foil.
- Using paper towels, pat lamb dry. Using a sharp knife, score the top side of the lamb by making shallow cuts in a diamond pattern.
- In a small bowl, combine garlic, olive oil, rosemary, thyme, Dijon, salt and pepper.
- Place lamb, fat side up, on a rack in the prepared roasting pan. Spread garlic mixture evenly over the lamb, rubbing in thoroughly into the scored cuts.
- Place into oven and roast until it reaches an internal temperature of 135 degrees F for medium, about 1 hour 30 minutes to 1 hour 45 minutes, or until desired doneness. Let rest 15 minutes before slicing.
- Serve immediately with mini hasselback potatoes.
Video
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Made Leg of Lamb for the very first time and EVERYONE loved it! So Simple, but looks and tastes 5 star!
Hello! Pm wondering if you put ot in rhe oven with a lid or without.
Thankyou,
-Kathleen.
Yes! I’m wondering the same thing. Covered, not covered? Maybe uncover the last half hour!
Uncovered
I made this for Thanksgiving and it’s very delicious ❤. Will be making again in the future. Thank you so much for sharing your recipes ❤️
So yum!
It will now be my go to when I do roast lamb.
Salty and flavourful.
Hi, thanks for sharing your recipe.
I find it to be nicely-written and i made it as you suggested; it turned out delicious.
I tried this recipe last night. First, we enjoyed the amazing aroma as the lamb was baking in my dutch oven. Then after it was ready to be eaten… yummy!! Thank you it was Damn Delicious 😀
I made this tonight and it was delicious! I will use this recipe again.
Wish I could add a picture of it.
This was a wonderful recipe I ever taste that’s why I give 5 stars because they deserve.
yea it was ok dont know what all of the fuss is about with all the comments . you kidding me it was the bomb lovvvvve it sooo much will be making again and again thanks for sharing this recipe
I will be making this for the first time tonight for 6 guests, plus myself and partner. Will a 5lb roast be big enough?
Amazing lamb roast! A complete success … everyone loved it. Thanks!
Great recipe, thank you. My family loved it, it was delicious.
My husband and I enjoy lamb a lot this recipe was over the top , we loved it thank you
Absolutely delicious
I made this the other day and girrrrrrrl, it was absolutely delicious! I’m probably slapping this garlicky-dijony goodness on all kinds of things now. So insanely tasty! This was my first time roasting lamb like this and I’m so glad I found your recipe! Thanks for sharing.
Excellent and easy!
Found this recipe in a pinch and am so happy I did! The recipe is super easy to follow and yielded better results than I could’ve hoped for! We LOVED how this turned out, the marinade rub is magic. Will definitely be making this again and again!
Made this several times. Always delicious! I know it’s good when my Greek Mother-in-law compliments the results. She didn’t believe it didn’t need marinating.
This is my “go-to” lamb recipe!
Made this for my wife who loves lamb and she loved it.
This is the best Lamb recipe I have found. Even family members that don’t like Lamb eat it.
I have always had great success with lamb even the first time …. I winged it without a recipe. The recipe hits the mark!