Season the beef with 1 teaspoon of the salt and all of the black pepper and set it aside. Heat the dry instant pot on the sautee setting.
Snip the stem end off of the chile peppers with kitchen scissors and shake out the seeds. Split the pepper in half lengthwise.
Working in batches so the peppers can be in contact with the bottom of the pan without crowding, toast the peppers. Move them occasionally or flip them over from time to time for 3 to 4 minutes, or until fragrant.
Transfer the toasted chiles to a 2 quart saucepan and cover by 2 inches of water. Place the pan over high heat and bring it to a boil.
Cover the saucepan, and shut the heat off. Let the peppers soak for 10 minutes, or until tender.
While the peppers soak, drizzle the oil into the electric pressure cooker, still set on Sautee. Working in batches, brown the beef on each side and transfer to a plate.
With the cooker still on Sautee, add the onion wedges and cook, stirring constantly, until browned but not burned, about 4 minutes. Toss in the garlic cloves and cook 1 minute longer, or until fragrant.
Stir in the cumin, ginger, cinnamon stick, and cloves cloves and toast, stirring constantly, for about 1 minute or until fragrant again. Pour in the beef stock and vinegar and use a sturdy spoon to scrape up any browned bits from the bottom of the pan.
Drain the softened chiles, discard the soaking liquid, and add the chiles to the pot along with the remaining salt, fire roasted tomatoes, and oregano. Use an immersion blender to blend until the sauce is smooth.
If you do not have an immersion blender, put the drained peppers into a standard blender along with the tomatoes and purée until smooth. Pour this into the pressure cooker.
Return the beef to the pan and nestle the bay leaves into the sauce. Set the Instant Pot for HIGH pressure for 45 minutes.
When the cycle has finished, release the pressure according to the manufacturer’s instructions. The beef should be fall-apart tender when prodded with a fork.
If it is not, reseal the lid and add 10 more minutes of HIGH pressure. Turn off the pressure cooker.
When the beef is tender, use two forks to shred the beef in the stew, discarding any large pieces of fat. Allow the mixture to stand for a few minutes and skim the fat from the top.
Reserve the fat for use in future birria tacos. It is what you’ll dip the tortillas in.
Serve the beef in the consommé that formed around it as you cooked it. It is delicious topped with chopped onions, a squeeze of lime, and some fresh cilantro!