This boneless Lamb Barbacoa shreds perfectly after it’s cooked to perfection making it the perfect filling for tacos, sandwiches, and more! This slow-smoked leg of lamb is incredibly tender and juicy, then served on corn tortillas with salsa verde, pickled red onions, and more!

Barbacoa has roots deep in the history of southwestern barbecue. We know it goes far back with varieties from the Indies, the Caribbean, and American Indians. 

For this recipe and cooking method, I’m talking about the barbacoa found in the southwest region of America. Workers were often paid with lesser valued cuts of meat, that needed to be cooked low and slow in pits covered with leaves until they could be pulled. Making fork-tender and succulent bites.

The hours of smoke would bathe the hearty cuts and allow the flavors to seep in and transform what could have been a rustic cut of tough roast into extremely tender juicy barbecue.

Unlike a roasted or smoked leg of lamb, where you want to cook to medium-rare, this boneless leg of lamb is cooked until it can be shredded easily with a fork. If you’re looking for a traditional bone-in leg of lamb recipe to serve, try this honey dijon leg of lamb.

Although I would love to have a coal-filled pit in my backyard for big cuts of juicy meat, it’s not very likely for the average person. This recipe for lamb barbacoa is a modern spin on the classic. It’s made in the smoker, but still packs a ton of flavor!

What is Barbacoa?

Barbacoa is a cooking method that involves steaming meat, usually lamb, goat, or pork, in an underground oven. 

I opted to use a smoker for my spin on lamb barbacoa. A light spice rub, hours of smoking over wood chips, and a low temp allow the fat to melt over the leg of lamb, basting it in all that juicy glory. I shredded it, then steamed it with a light beer for added flavor before turning this pulled smoked leg of lamb into a serious barbacoa taco bar!

Ingredients Needed:

  • Leg of American Lamb – you’ll need one 10-pound leg of American lamb with the bone removed. You can ask your butcher to remove the bone for you.
  • Seasonings – we’re using a simple yet flavorful blend of cumin, oregano, coriander seed, cinnamon, chili powder, salt, and pepper.
  • Beer – any light beer will work.
  • For Serving –  serve your lamb barbacoa with salsa verde, spicy pickled onions, limes, avocados, and corn tortillas.

How to Make Lamb Baracoa

First, combine the seasonings in a small bowl, then rub them all over the lamb. 

Prep your smoker and wood chips for 210-225ºF, then smoke the lamb for 8-10 hours, spritzing at around 165F and smoking it until it’s 195 to 203F.

Remove the smoked leg of lamb from the grill and rest. When it’s safe to handle, shred the lamb. 

Arrange the shredded lamb in a foil baking pan, pour in the beer, then cover with foil and steam until the fat and cooking liquid reduce by half. 

Serve with salsa, pickled red onions, lime wedges, avocado, and corn tortillas.

How Long Do You Smoke Lamb?

We’re smoking the 10-pound leg of lamb extra low and slow at 210-225ºF for 8-10 hours. 

Keep in mind that a different sized leg of lamb will cook at different rates. The best way to tell that it’s done is to check the internal temperature with a meat thermometer. Smoke it to 185-190ºF for easy shredding!

Tips and Notes for Smoked Leg of Lamb

  • Season ahead of time. I like to add the dry rub to the meat ahead of time so it can marinate for a little bit. This allows the flavor to really penetrate the meat.
  • Smoke fat side up. Smoking fat side up allows the fat to drip down and baste the meat as it cooks for a juicier, more tender texture.
  • Don’t open the smoker. Opening the smoker too often lets heat out which causes fluctuations in temperature. Avoid opening it as much as possible for more even cooking!
  • Check the temp. As always, use a wireless digital thermometer to ensure that the meat is temping correctly. You can cook it to 145ºF and slice or chop the meat, but for true pulled lamb to cook it to 195-205ºF, so it’s easily shreddable! 

Serving Suggestions

I love to serve this smoked lamb on corn tortillas topped with the best taco toppings. My favorites are salsa verde and pickled red onions! This also makes for amazing bbq sandwiches with sauce, enchilada filling, or as leftovers for lamb chilaquiles.

How to Store

Leftover lamb barbacoa will last in an airtight container in the fridge for 3-4 days or in the freezer for up to 3 months. 

To reheat, thaw in the fridge if frozen, then warm on the stove with a splash of broth to moisten until heated through.

More Lamb Inspiration

If you’ve tried my Lamb Barbacoa recipe, or any other recipe on GirlCarnivore.com please don’t forget to rate the recipe and let me know where you found it in the comments below. I get inspired by your feedback and comments! You can also FOLLOW ME on Instagram @girlcarnivore as well as on  Twitter and Facebook.

Smoked Lamb Barbacoa

5 from 6 votes
Prep: 10 mins
Cook: 10 hrs 45 mins
Resting Time: 40 mins
Total: 11 hrs 35 mins
Servings: 10
Close up of pulled lamb barbacoa topped with herbs, red onion, limes and red peppers.
Perfecly smoked leg of lamb shreds beautifully for this succulent lamb barbacoa! Perfect for tacos, stew, or as pulled lamb sandwiches!

Ingredients  

  • 10 lbs leg of lamb boneless

For the Lamb Rub

  • 2 tbs Cumin
  • 1/2 tsp Oregano
  • 1/2 tsp Coriander
  • 1/2 tsp Cinnamon
  • 1/2 tsp Garlic powder
  • 1/4 tsp Chili powder
  • Salt and pepper
  • 12 oz light beer

For Garnish

  • Salsa verde
  • pickled red onions
  • limes sliced
  • avocados sliced
  • Tortillas

Instructions 

Prep the Lamb

  • Pat the lamb dry.
    10 lbs leg of lamb
  • Combine the rub ingredients in a small bowl.
    2 tbs Cumin, 1/2 tsp Oregano, 1/2 tsp Coriander, 1/2 tsp Cinnamon, 1/2 tsp Garlic powder, 1/4 tsp Chili powder, Salt and pepper
  • Rub the spice mix liberally all over the leg of lamb, being sure to get in between the seams.

Prep the Grill

  • Prep your smoker 210 – 225 degrees F. 
  • When the temperature is steady add wood chunks, if desired and wait until the smoke is clean.

Smoke the Leg of Lamb

  • Hang the lamb in your smoker, or lay flat if using an offset or pellet smoker.
  • Smoke the lamb for 4 to 5 hours and check the internal temperature.
  • At around 165F, start spritzing the lamb every 35 to 45 minutes.
  • Cook the lamb until it reaches and internal temperature of 195 to 203F with an instant read thermometer.

Rest

  • Carefully remove the lamb from the smoker.
  • Tent with foil and allow the lamb to rest for 40 minutes or until cool enough to handle.

Pull the Lamb

  • When safe to handle, shred the lamb with your hands or 2 forks. 
  • Discard any fatty chunks.

Simmer

  • Arrange the shredded lamb in a foil baking pan.
  • Pour in the beer and toss to coat.
    12 oz light beer
  • Cover the pan with foil.
  • Return the pan to the grill and steam the pulled lamb on the cooler side f the grill, or low heat, until the fat and cooking liquid have combined and are reduced by half.

Serve

  • Serve with the salsa verde, homemade pickled red onions, lime wedges, avocado, and tortillas for a down home lamb barbacoa bar.
    Salsa verde, pickled red onions, avocados, Tortillas, limes

Notes

This recipe works on a pellet grill, gas grill, offset smoker, or barrel-style cooker. As long as you can maintain a temperature of 210 to 225 for a low and slow cook, any grill works. 
We tested this lamb with hickory wood chunks over lump charcoal. 
Our lamb came trussed for ease, but if your boneless leg of lamb isn’t, asked your butcher to tie it for you, or tie it up for ease and even grilling. 
You can chill the lamb after you shred it and reheat it later. This recipe is best smoked and shredded a day before serving. 

Nutrition

Serving: 1g | Calories: 382kcal | Carbohydrates: 1g | Protein: 59g | Fat: 13g | Saturated Fat: 5g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Cholesterol: 183mg | Sodium: 182mg | Potassium: 860mg | Fiber: 0.3g | Sugar: 0.1g | Vitamin A: 32IU | Vitamin C: 0.1mg | Calcium: 33mg | Iron: 6mg
Course: Main Course
Cuisine: barbeque
Author: Kita Roberts
Keyword: lamb barbacoa

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