Slow Cooker Mexican Birria is a super flavorful dish with dried chiles, beef, and lots of Mexican spices all slow cooked to perfection
Remove the chile stems and shake out most of the seeds.
Optional: Toast the chiles in a skillet over medium high heat for 1 minute per side.
Put the beef broth in a small saucepan, bring to a boil, and remove from heat. Add the chiles to the hot beef broth. Let soak for 20 minutes.
Add the beef broth and chiles to a blender or food processor and add the apple cider vinegar, salt, honey, pepper, cumin, oregano, ginger, cinnamon, garlic, and bay leaves. Blend on low for at least 1 minute.
Put the beef roast into a slow cooker. Add the diced onion and cans of Rotel tomatoes. Pour the chile mixture from the blender over top and stir it a little. Turn the slow cooker on low for 6 to 8 hours.
Shred the beef with two forks right in the slow cooker. Serve in bowls with desired toppings or use as a filling for tacos, quesadillas, burritos, or on top of nachos.