Prep the dried chiles: Remove the stems and seeds from the guajillo, ancho and arbol chiles. The seeds can give a bitter taste so this part is a must. Place the dried chiles in a bowl and cover with very hot water. Let them soak for about 15 minutes, then drain.
Make the birria sauce: Add the softened chiles to a blender along with the tomatoes, onion, jalapeños, garlic, beef broth, vinegar, salt, pepper, cumin, oregano, chipotle powder, cinnamon and ginger. Blend until very smooth.
Add the beef to the slow cooker: You can slice it into chunks but I found it easier to just place the chuck roast whole into the slow cooker.
Add the sauce: Pour the birria sauce over the beef. Add the 2 bay leaves and gently stir or turn the beef so it's coated.
Slow cook: Cover and cook on LOW for 8–9 hours or HIGH for 5–6 hours, until the beef is fall-apart tender and easily shreds with a fork. If the meat isn’t shredding easy, it just needs more time to cook. Sizes of beef will vary cooking time a smidge
Shred the birria: Remove the beef from the slow cooker, leaving as much sauce as you can in the crock pot and shred it with two forks. Discard any large pieces of fat and the bay leaves during this process.
Finish the broth: Return the shredded beef to the slow cooker and stir it into the flavorful consommé. Taste and add additional salt if needed, you can also add more beef broth if you prefer it a little thinner for dipping.
Serve: Serve the birria andconsommé in bowls with chopped onion, cilantro and diced jalapeños. I like to serve mine with charred tortillas. You can make barria tacos or barria quesadillas
Optional extra flavor upgrades: Before adding the chuck roast to the slow cooker, sear the chunks in a very hot skillet for 2–3 minutes per side. It’s completely optional, but it gives the birria a deeper, richer beef flavor. You can also roast the onions, tomato and jalapeño before blending for a deeper smoky flavor. Just pop them in the oven on a sheet pan and broil for about 10 minutes on high.