01 -
Dice the onions and roughly chop the garlic. Remove stems from dried chiles, shake out seeds, and cut into 2-3 pieces each.
02 -
Season chuck roast with salt and pepper on all sides. Heat olive oil in a large skillet over high heat. Sear the beef for 2 minutes on each side until browned all over.
03 -
Pour 1 cup of beef stock into the hot pan to scrape up the browned bits. Transfer the beef and all pan juices to your slow cooker.
04 -
Add onions, garlic, cilantro, tomato sauce, chiles, cinnamon, cumin, paprika, oregano, thyme, and bay leaves to the slow cooker. Pour in remaining beef stock to cover the meat.
05 -
Cook on low for 8-10 hours until the beef is fork-tender and easily shreds apart.
06 -
Remove beef from slow cooker and shred with two forks. Discard any cooking string. Set shredded beef aside in a bowl.
07 -
Remove bay leaves from cooking liquid. Using a slotted spoon, transfer all the chunky vegetables and chiles to a blender. Blend until smooth, adding cooking liquid as needed. Stir blended mixture back into the slow cooker liquid.
08 -
Pour ½ cup of the consomme over the shredded beef and gently mix. Keep remaining consomme warm for dipping.
09 -
Heat oven to 300°F. Heat a large skillet over medium-high heat and spray with oil. Dip each tortilla lightly in consomme, then place in hot pan. Add cheese to entire tortilla, then beef to half. Fold empty half over beef.
10 -
Transfer each finished taco to a baking sheet in the oven to keep warm. Serve hot with small bowls of the warm consomme for dipping.