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Dinner · Part 2 of 3: Instructions

Slow-Cooker Lamb Birria with Smoky Consommé Step-by-step instructions

A rustic bowl of slow-cooked lamb birria topped with melted Oaxaca cheese and fresh cilantro
Prep
Cook
Total
Serves
8
Includes 10 min resting

Before you start

Before beginning, ensure your slow cooker is clean and placed on a stable surface. Prepare the adobo sauce by blending your dried guajillo and ancho chiles with tomatoes and seasonings until smooth. Have all your aromatics, such as onions and garlic, peeled and ready.

If you are using a bone-in lamb shoulder, check for any large, loose pieces of bone fragments and trim any excessive external fat if preferred, though leaving some fat will provide better flavor and moisture throughout the long cooking process.

Ingredients at a glance (8)
  • 4 lb bone-in lamb shoulder
  • 3 cups blended guajillo-ancho-tomato adobo sauce, made ahead
  • 1 onion, halved
  • 6 cloves garlic cloves
  • 2 bay leaves
  • 1 tbsp cumin
  • 1 cup shredded Oaxaca cheese
  • 1 cup minced white onion, fresh cilantro, avocado, and lime wedges, for serving

Instructions

Preparation and Layering

  1. Assemble the slow cooker
    Place the four pounds of bone-in lamb shoulder into the basin of the slow cooker. Pour the blended guajillo-ancho-tomato adobo sauce over the meat until well coated. Add the halved onion, garlic cloves, bay leaves, and cumin to the pot, ensuring everything is distributed evenly around the lamb for maximum flavor infusion throughout the long cooking process.
    Look for The lamb is fully submerged or heavily coated in the red chile sauce.
    Tip For easier cleanup, consider using a slow cooker liner before adding the ingredients.

At this stage, the slow cooker is fully loaded with all ingredients. The lamb is nestled among the aromatics and submerged in the vibrant red adobo sauce. Everything should be arranged so that the flavors can distribute evenly. Check that the lid fits securely, as a tight seal is crucial for maintaining the moisture and temperature required for the long, slow braising process that will follow over the next several hours.

Slow Cooking Transformation

  1. Slow cook until tender
    Cover the slow cooker with its lid and set it to the LOW heat setting. Allow the lamb to cook undisturbed for nine hours. The long, slow heat breaks down the connective tissues in the lamb shoulder, resulting in meat that easily pulls away from the bone. Ensure the internal temperature of the thickest part of the lamb reaches 145°F (63°C) and let the meat rest at least 3 minutes before proceeding.
    Look for The lamb is extremely tender and falling off the bone when poked with a fork.
    Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
    Tip Do not lift the lid during the first seven hours to maintain the consistent internal temperature.

After nine hours, the kitchen should be filled with a deep, savory aroma. The lamb will have transformed into a tender, soft state where it easily pulls apart. The consommé has reduced slightly and absorbed the essence of the lamb and spices. Check the consistency of the liquid; it should be thick and flavorful. The meat should be ready to be easily shredded with minimal effort, indicating that the collagen has fully broken down.

Shredding and Final Assembly

  1. Shred and serve
    Remove the cooked lamb from the slow cooker and shred it using two forks, discarding any excess bones. Return the shredded meat to the hot consommé. Stir in the shredded Oaxaca cheese until it melts into the warm sauce. Serve the birria in bowls with the consommé, topped with minced white onion, fresh cilantro, avocado slices, and fresh lime wedges for brightness.
    Look for The cheese is fully melted and incorporated into the rich, ruby-red broth.
    Tip Let the meat rest for at least 10 minutes after shredding to allow it to absorb more of the flavorful consommé.

The shredded lamb is now combined with the rich consommé and the Oaxaca cheese, which should be melted and stretchy. The final dish looks like a hearty, rustic stew with a beautiful red hue.

Before serving, ensure the temperature is hot enough to keep the cheese melted. The garnishes should be fresh and vibrant, providing a necessary contrast to the deep, savory flavors of the birria. Check that all components are well-integrated for the perfect serving.

Common mistakes

Avoid the common mistake of overcrowding the slow cooker, which can prevent even cooking. Ensure the lamb is fully surrounded by the adobo sauce to prevent the top of the meat from drying out.

Another frequent error is lifting the lid too often; every time the lid is removed, heat escapes and the cooking time is extended, which can lead to uneven results. Finally, do not rush the process. Nine hours on low is the ideal window for the connective tissues to fully break down into a melt-in-your-mouth texture.

How to tell it’s done

The lamb is perfectly done when it reaches an internal temperature of at least 145°F (63°C). Visually, the meat should be incredibly tender and pull away from the bone with almost no resistance. When you shred the meat, it should feel soft and moist, not dry or stringy.

The consommé should be rich, dark red, and aromatic, with a layer of flavorful fat on top. Ensure the meat rests for at least 10 minutes after being removed from the pot to allow the juices to redistribute properly.

  • Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest

Coming up in Part 3: common questions

  • Can the lamb be replaced with beef?
  • How can the consommé be made thicker?
  • Is it possible to cook this on high instead of low?

Also in Part 3: variations (Spicy Lamb Birria, Birria Tacos), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)