Authentic Lamb Barbacoa Recipe — Slow-Cooked Mexican-Style Lamb

Tender slow-cooked shredded lamb in a spicy Mexican-style barbacoa sauce, piled onto soft tacos and loaded with toppings.
I’m making a Lamb Barbacoa taco FEAST today, and most of the work is done by the slow cooker.
Everyone will adore this special dish — perfect for a family gathering and a brilliant alternative to the traditional Sunday roast.

Overhead shot of Lamb Barbacoa Carnitas Tacos on a plate with a bowl of guacamole

I wanted to show how versatile lamb can be and how well it handles bold flavours. We’re going Mexican with barbacoa-style lamb carnitas — slow-cooked until meltingly tender, then crisped for texture and piled into warm tortillas with plenty of vibrant toppings.

Table of Contents

  • 📋 Ingredients
  • 🧑‍🍳 How To Make It
  • 🌮 How to serve Lamb barbacoa
  • 📺 Watch how to make it
  • 🇲🇽 More Mexican Inspired Recipes
  • ? Frequently Asked Questions
  • More Delicious Lamb Recipes
  • Lamb Barbacoa Recipe

📋 Ingredients

For the lamb barbacoa:

Ingredients for lamb barbacoa on a wooden table
  • 2–2.2 kg (4.4–4.8 lb) bone-in shoulder of lamb
  • Adobo paste and chipotle paste for smoky heat
  • Aromatics and spices: garlic, cumin, ground coriander, dried oregano, ground cloves
  • Chicken or lamb stock (about 480 ml / 2 cups)
  • Salt and ground black pepper
  • Juice of 2 limes

To Serve:

Tacos and toppings for lamb carnitas tacos on a wooden board
  • Soft corn tortillas or warmed flatbreads
  • Toppings: red onion, fresh coriander (cilantro), sliced jalapeños, cherry tomatoes, salsa, sour cream, guacamole and lime wedges

🧑‍🍳 How To Make It

Full recipe details are in the recipe card below.

  • Sear the lamb: Heat oil in a large frying pan and brown the lamb on all sides to develop colour and flavour.
  • Add adobo and chipotle pastes, minced garlic, cumin, ground coriander, dried oregano, ground cloves, stock, salt, pepper and lime juice. Bring to the boil briefly.
  • Transfer the lamb and cooking liquid to a slow cooker and cook on low for 8–9 hours or on high for 6 hours. (If you prefer, you can cook in the oven — see notes below.)
  • Remove the lamb and shred the meat with two forks. Reserve the cooking liquid — it’s packed with flavour.
  • Fry the shredded lamb in a hot pan with a little oil until crisp and golden for extra texture.
6 image collage showing how to make lamb carnitas
Shredded lamb carnitas in a frying pan

🌮 How to serve Lamb barbacoa

  • Divide the shredded lamb between warmed tortillas.
  • Drizzle some of the reserved cooking liquid over the meat for extra moisture and flavour.
  • Top with sliced red onion, fresh coriander, jalapeños, tomatoes, salsa, sour cream and guacamole.
  • Serve with lime wedges for squeezing over the tacos.
Lamb Barbacoa Carnitas Tacos piled up on a plate

Be generous with the toppings and offer small bowls of the cooking liquid for dipping — it really lifts the dish.

📺 Watch how to make it


🇲🇽 More Mexican Inspired Recipes

If you enjoy this lamb barbacoa, try one of these next:

Three grilled chicken tacos with avocado, soured cream, jalapeños, coriander, and salsa on flour tortillas, served with lime wedges on a blue surface.

Dinner

Easy Chicken Fajitas Recipe

A bowl of chilli con carne with kidney beans, ground beef, cheese, and cilantro over white rice. Tortilla chips on the side.

One Pot

Chilli Con Carne

Overhead square image of 6 crispy fish tacos on a blue plate, topped with pico de gallo and sriracha mayo.

Fish

Crispy Fish Tacos with Pico De Gallo

A square, overhead shot of chicken tinga in a large black bowl.

Street Food

Chicken Tinga

Square image of beef barbacoa on soft tacos topped with red onion and jalapeno slices

Meat

Slow Cooker Barbacoa Beef

Square overhead shot of Mexican chicken kebabs piled on a wooden board. Salsa and rice in the background.

BBQ

Mexican Chicken Skewers with Rice and Picante Salsa

? Frequently Asked Questions

Can I make it ahead?

Yes. Cook the barbacoa through to the point of shredding, then cool, cover and refrigerate the lamb and the cooking liquid for up to two days. To reheat, fry the shredded lamb in a large pan with two tablespoons of oil until piping hot and golden. Reheat the cooking liquid separately until hot.

Can I cook the lamb barbacoa in the oven?

Yes. Use a heavy-based ovenproof pan with a lid and cook at 160°C for about 3 hours. Add an extra 180 ml (3/4 cup) stock and check occasionally; add boiling water or more stock if it looks dry.

Can I freeze it?

Yes. Shred the lamb, cool and freeze in a suitable container. Freeze the cooking liquid too (leave space for expansion). Defrost overnight in the fridge and reheat as above.

Can I scale this recipe down?

Yes. For 2–3 people, use a half shoulder joint or 2 lamb shanks and reduce ingredients by about one quarter. Cook in the same way.

Close up of Lamb Barbacoa Carnitas Tacos with sour cream and red onions

More Delicious Lamb Recipes

  • Slow-Cooked Pulled Lamb Curry
  • Greek Lamb Souvlaki Kebabs
  • Slow Roast Shoulder of Welsh Lamb with Vegetables and Cider Gravy
  • Traditional Lancashire Hotpot
  • Crispy Lamb Salad
  • Homemade Lamb Koftas — perfect on the BBQ

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Square image of a plate of Lamb Barbacoa Carnita Tacos with a bowl of guacamole

Lamb Barbacoa Recipe

Tender shredded lamb in a spicy barbacoa sauce, piled onto soft tacos and loaded with toppings. Most of the work is done in the slow cooker.

Prep Time: 15 mins
Cook Time: 6 hrs 15 mins
Total Time: 6 hrs 30 mins
Servings: 10
Cuisine: Mexican | Course: Dinner, Party Food

Ingredients

  • 4 tbsp vegetable oil
  • 2.2 kg (4.8 lbs) bone-in shoulder of Welsh lamb
  • 1 tbsp adobo paste
  • 1 tbsp chipotle paste
  • 4 cloves garlic, peeled and minced
  • 1 tbsp cumin
  • 1 tsp ground coriander
  • 1 tbsp dried oregano
  • 480 ml (2 cups) chicken or lamb stock
  • 1 tsp salt
  • 1 tsp ground black pepper
  • 1/4 tsp ground cloves
  • Juice of 2 limes (about 4 tbsp)

To serve:

  • 10–12 soft tacos, warmed
  • 1 red onion, peeled and sliced
  • 4 tbsp chopped fresh coriander
  • 2 jalapeños, sliced
  • 10 cherry tomatoes, quartered
  • 4 tbsp salsa
  • 120 ml (1/2 cup) sour cream
  • 200 g (1 cup) guacamole
  • 2 limes, cut into wedges

Instructions

Make the lamb barbacoa

  • Heat 2 tbsp oil in a large frying pan. Add the lamb and sear on all sides.
  • Add the adobo paste, chipotle paste, minced garlic, cumin, ground coriander, oregano, stock, salt, pepper, ground cloves and lime juice to the pan.
  • Bring to the boil, then transfer to a slow cooker. Cook on low for 8–9 hours or on high for 6 hours.
  • Once cooked, remove the lamb from the cooker, discard the bones and shred the meat with two forks.
  • Heat the remaining 2 tbsp oil in a large frying pan over high heat and fry the shredded lamb for 3–4 minutes, turning so it becomes crisp and golden.

Assemble the lamb tacos

  • Divide the meat between warmed tacos and drizzle over some cooking liquid.
  • Top with red onion, fresh coriander, jalapeños, tomatoes, salsa, sour cream and guacamole.
  • Serve with lime wedges.

Notes

Cooking in the oven rather than the slow cooker

If you prefer the oven, cook the lamb in a heavy-based ovenproof pan with a lid at 160°C for about 3 hours. Add an extra 180 ml (3/4 cup) stock and check occasionally, adding more liquid if it looks dry.

Can I make it ahead?

Yes. Cook up to shredding, then cool, cover and refrigerate the meat and cooking liquid for up to two days. Reheat the lamb by frying in oil until hot and golden; reheat the liquid in a saucepan.

Can I freeze it?

Yes. Cool and freeze the shredded lamb and the cooking liquid (leave space in the container). Defrost overnight in the fridge and reheat as above.

Scaling down

For 2–3 people, use a half shoulder or 2 shanks and reduce ingredients by about 25%.

Nutrition

Calories: 385 kcal | Carbohydrates: 23 g | Protein: 29 g | Fat: 20 g | Saturated Fat: 9 g | Cholesterol: 87 mg | Sodium: 1069 mg | Fiber: 3 g | Sugar: 3 g

Nutrition information is approximate and should be used as a guide.

This lamb barbacoa recipe was first published in July 2020 and updated in March 2025 with extra information and housekeeping updates.

Some links on the original site may be affiliate links. Nutritional information is approximate and can vary depending on ingredients and portion sizes.