Boneless Leg of Lamb Recipe
Published October 27, 2023. This post may contain affiliate links. Please read my disclosure policy.
This full-flavored boneless leg of lamb recipe is stuffed with roasted garlic cloves and crusted in herbs for the most delicious entrée ever. You will love the big, bold flavors in this tasty lamb meal.
Lamb is one of my all-time favorite things to make and eat. If you love it as much as I do, try my Kofta or Scotch Broth Soup.
Boneless Leg of Lamb
Boneless leg of lamb is a leg that has been deboned for quicker cooking and ease of slicing and serving. You can purchase these from a local butcher or grocery store in the meat department. It’s almost 100% sold wrapped in a butcher’s twine netting so that it can hold its shape while cooking.
There are many ways to prepare a boneless leg of lamb, whether in the oven or smoker and with assorted ingredients stuffed in it, served on it, or alongside it. My recipe is for a smoked boneless leg of lamb, but the procedures and temperatures can perfectly be applied to cooking in the oven, although there will not be any smoky flavors.
Ingredients and Substitutions
- Lamb – You will need a boneless leg of lamb for this recipe. However, these cooking procedures would also work for a bone-in leg of lamb.
- Oil – I use the oil from my garlic confit recipe. You can use plain olive or avocado oil for this recipe.
- Garlic – You will need roasted garlic or garlic confit cloves.
- Herbs – I used a combination of fresh thyme, rosemary, and flat-leaf parsley. You can substitute 1 to 1 for dry ingredients.
- Shallot – You will need a shallot for the sauce. However, you can substitute with a red, white, yellow, or sweet onion.
- Stock – I used beef stock for the sauce.
- Wine – Any cabernet sauvignon, merlot, shiraz, or blend is great.
- Seasonings – I use only coarse salt and fresh cracked pepper.
How to Make a Smoked Boneless Leg of Lamb
Start by removing the netting from the boneless leg of lamb and place it on a rack over a sheet tray.
Season the lamb on both sides with salt and pepper and place it on the rack and sheet tray for 24-48 hours in the refrigerator.
Preheat the smoker or oven to 225°.
Mix the oil with thyme, rosemary, parsley, roasted garlic cloves, salt, and pepper until combined.
Using a sharp knife, make 1” wide and deep incisions in 20-25 places about ½” to 1” inch apart from each other.
Stuff a roasted garlic clove in each slit until all the holes are filled.
Pour about 1/3 of the herb oil mixture over the inside of the lamb and spread it out.
Fold the boneless leg of lamb back over and place the netting around it again.
Use another 1/3 of the herb oil mixture over the outside of the lamb.
Place the lamb on a top rack in the smoker with a drip pan underneath. It’s important to use a drip pan. Smoke or cook until it reaches an internal temperature of 100° F.
Turn the heat up to 500° and cook it until it reaches 125° internally for medium-rare, 135° for medium, 145° F for medium-well, or 155° for well.
Remove it from the smoker or oven and place on a cutting board to rest for 15 to 20 minutes.
Take the drippings from the pan and place them in the freezer.
Add olive oil to a medium-sized sauce pot over medium heat.
Add in shallots and sauté until they are lightly browned.
Deglaze with the wine, turn the heat to high, and cook until there are 2 to 3 tablespoons of the liquid left.
Pour in the beef stock and cook until there is about 1 cup left.
Finish by whisking in the chilled pan drippings, optional minced fresh parsley, salt, and pepper.
Remove the netting from the lamb and thinly slice it.
Garnish with remaining 1/3 of herb oil and optional pan sauce. Try serving it with my Lebanese Rice.
Make-Ahead and Storage
Make-Ahead: This recipe is meant to be eaten as soon as it is done cooking and resting. However, you can make it up to 1 hour ahead of time and keep it warm at low temperatures in the oven, at around 225° F, before serving it.
How to Store: Place covered in the refrigerator for up to 5 days. Cover and freeze for up to 3 months. Thaw in the refrigerator for 1 day before reheating.
How to Reheat: Place the desired amount of meat in a medium-sized pan, add ¼ cup of beef stock or leftover sauce, and heat at 350° for 8-12 minutes or until hot.
Chef Notes + Tips
- Any dry red wine will work for the sauce.
- You do not need to make the red wine brown sauce for this recipe.
- Try cooking this on the smoker or in the oven like a smoked pork shoulder to where the meat easily shreds apart. To do this, cook it at 225° until it reaches 170° F internally and then wrap it in foil or butcher’s paper. Cook wrapped at 225° F until it reaches 204° F internally. Rest it for 25-30 minutes before unwrapping and shredding.
- The pan sauce at the end is completely optional.
- You can make this in the oven using the same temperatures. However, place the lamb on a rack inside of a pan. Do not place the leg of lamb directly on an oven rack. Use a pan.
More Lamb Recipes
Video
Boneless Leg of Lamb Recipe
Ingredients
- 3 ½ pound boneless leg of lamb
- 25-30 roasted garlic confit cloves
- 1/3 cup roasted garlic oil, + 2 tablespoons
- 3 tablespoons minced fresh thyme
- 3 tablespoons minced fresh rosemary
- 3 tablespoons minced fresh parsley
- ¾ cup dry red wine
- 3 cups beef stock
- Coarse salt and fresh cracked pepper to taste
Instructions
- Start by removing the netting from the boneless leg of lamb and place it on a rack over a sheet tray. Be sure to keep the netting.
- Season the lamb on both sides with salt and pepper and place it uncovered on the rack and sheet tray for 24-48 hours in the refrigerator.
- About 30 minutes before the lamb is ready to be cooked, preheat the smoker or oven to 225°.
- Next, mix the oil with thyme, rosemary, parsley, 5 roasted garlic cloves, salt, and pepper until combined. Set it to the side.
- Remove the lamb and place it fat side down on the rack. Using a sharp knife, make 1” wide and deep incisions in 20-25 places about ½” to 1” inch apart from each other.
- Stuff a roasted garlic clove in each slit until all the holes are filled.
- Next, pour about a 1/3 of the herb oil mixture over the inside of the lamb and spread it out using a spoon, brush, or your hands. Fold the boneless leg of lamb back over and place the netting around it again.
- Use another 1/3 of the herb oil mixture over the outside of the lamb and spread it all around using a spoon, rush, or your hands, completely covering it.
- Place the lamb on a top rack in the smoker with a drip pan underneath. It’s important to use a drip pan. If you are cooking in the oven, place the lamb directly in a 13×9 pan and place it on the middle rack in the oven. Smoke or cook until it reaches an internal temperature of 100° F, which takes about 2 hours.
- Next, turn the heat up to 500° and cook it until it reaches 125° internally for medium-rare, 135° for medium, 145° F for medium-well, or 155° for well.
- Remove it from the smoker or oven and place on a cutting board to rest for 15 to 20 minutes.
- Optional Pan Sauce: If you want to make the pan sauce, take the drippings from the pan and place them in the freezer to chill quickly.
- For the sauce, add 1 to 2 tablespoons of olive oil to a medium-sized sauce pot over medium heat. Add in shallots and sauté until lightly browned, which takes about 2 to 3 minutes.
- Deglaze with the wine turn the heat to high, and cook until there are 2 to 3 tablespoons of the liquid left.
- Pour in the beef stock and cook until about 1 cup left, which takes about 10 minutes. Finish by whisking in the chilled pan drippings, optional minced fresh parsley, salt, and pepper.
- Remove the netting from the lamb and thinly slice it. Garnish with remaining 1/3 of herb oil and optional pan sauce.
I have to say I was a bit nervous as this was my first time making a lamb roast. I live in an apartment and we’ll my oven has a mind of its own. Had a bit of trouble getting it to 225°, but eventually came close. I’m also disabled so the prep time took a bit longer. But it was all worth it. My roast came out perfect. I had to laugh a bit when I read your instructions that if using an oven don’t put in on the rack, use a pan. But it’s your attention to even these kind of details that make you my favorite Chef.
Made for Easter dinner it was delicious and everyone wants it again soon.
rave reviews from our guests for Easter dinner, reviews that carried into the next day with the leftovers. excellent recipe, thank you for sharing it chef
I have prepared a number of Billy’s recipes. All have been excellent. Today is Easter and a couple of weeks ago I started thinking of what to have for Easter dinner. I chose Billy’s boneless leg of lamb.
My wife and I like lamb but usually have rack of lamb as our experience is they are less likely to have that gamey taste. But trusting Billy I thought I would give it a try. Since I do not have a smoker, I made it in the oven and boy, am I glad I made this.
A five star is not worthy of this. It was excellent. It is not a difficult recipe to do and the results are amazing. Even if you are hesitant of having lamb, I think you will find this very rewarding. The crust that it produces provides immense flavor. The pan sauce just adds to it. I served it with oven roasted asparagus with a balsamic reduction and twice backed potatoes.
Thank you Billy. My 40 year old Son told me to keep this recipe as a Sunday family dinner.
Yes, it was amazing and are making it on a regular basis.
Fabulous! Although I wouldn’t say the pan sauce is optional, so good you must make it! We were only able to salt the lamb for about 6 hours but still turned out great. Just a note, the shallot is missing from the actual recipe ingredient list although it’s mentioned elsewhere.
Thank you tasty recipe ChefBilly 😁😋👌👋
Boom fantastic ✔️😁👋😋🤩
Awesome, thank you!
YUMMY
Thanks!
This is Lovely Chef. What a Beautiful leg of Lamb. I would love to prepare this and have my son put it on the smoker I bet it would be delicious smoked. A great dish for The Holidays. I hope they have Lamb at Christmas time. I know they are plentiful in the Spring time. Thank you Chef for the lovely, recipe. I can’t wait to try this one.
Fantastic Billy, your insights and communication skills on the preparation and the finishing process make it easy. I’ve shared your sight on my department at work, now the conversation in the office after the weekend is what did we cook from your site. Be well , Susan sends her best. Angelo