Warm avocado oil in the Instant Pot on saute mode. Add the arbol, guajillo, and ancho chilies and saute until smoking, stirring them occasionally.
Then, add the onion and garlic, and continue cooking for 2 minutes. Transfer the ingredients to a blender and add 3-4 cups of HOT water. Let the mixture sit for 10 minutes so the chilies rehydrate.
Add apple cider vinegar, black peppercorns, Mexican oregano, coriander seeds, and ground cumin to the chilies and process until smooth; set it aside.
Generously season the chuck roast with salt and pepper. Add the chuck roast in a single layer and let it brown for 3-4 minutes. Repeat with the remaining beef, and set it aside.
Return the beef to the pot and pour the reserved chili mixture over the top through a mesh strainer. Use the remaining 1 cup of HOT water to encourage the chili mixture to strain.
Add the bay leaves, cinnamon stick, and Beef Better than Bouillon to the Instant Pot. Secure the lid and cook on high pressure for 50 minutes with a 10-minute natural release.Remove the beef from the Instant Pot and shred it using two forks.
For the Nachos:
Preheat the oven to 350℉ (176℃). Then, line a rimmed baking sheet with parchment paper.
Add a single layer of tortilla chips and top it with 1 cup of beef birria and 1 cup of shredded cheese. Add another layer of chips, followed by 1 cup of birria, and finish with an even layer of shredded cheese.
Bake for 10 minutes or until the cheese melts.
Notes
Expert Tips:
Add a beef shank or bones to the chuck to enhance the flavor of the birria.
Remove the beef from the Instant Pot and shred it using two forks.
You will only use about 2 cups of the shredded beef for the nachos; store the leftovers in an airtight container for 3-4 days in the refrigerator.
Reserve some of the consomé to dip the nachos in.
Line the sheet pan with parchment paper for quick cleanup.
Nutrition Disclosure:
The nutritional information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for professional advice.