- 1.
**Prepare the Birria:** Remove stems and seeds from dried chiles. Toast them lightly in a dry pan over medium heat for about 30 seconds per side, being careful not to burn them. Rehydrate chiles in hot water for 20 minutes.
- 2.
In a large Dutch oven or stockpot, sear the beef chuck roast in batches until browned on all sides. Remove the beef and set aside.
- 3.
In the same pot, add the tomatoes, onion, and garlic. Cook until softened, about 5-7 minutes.
- 4.
Add the rehydrated chiles (draining excess water), Mexican oregano, cumin, thyme, bay leaves, apple cider vinegar, salt, and pepper to the pot. Cook for another 5 minutes.
- 5.
Return the browned beef to the pot. Pour in the beef broth, ensuring the beef is mostly submerged. Bring to a boil, then reduce heat to low, cover, and simmer for 3-4 hours, or until the beef is very tender and easily shreds.
- 6.
Remove the beef from the pot and shred it using two forks. Strain the broth through a fine-mesh sieve, reserving the liquid (this is the consommé). Return the shredded beef to the strained broth. Set aside to cool slightly.
- 7.
**Prepare the Masa:** In a large bowl, beat the softened lard (or vegetable shortening) with an electric mixer until light and fluffy. Add the masa harina, baking powder, and salt. Mix until well combined.
- 8.
Gradually add the warm beef broth, mixing on low speed until a smooth, slightly wet dough forms. The dough should be the consistency of thick cake batter. You may need to adjust the amount of broth depending on the masa harina.
- 9.
**Assemble the Tamales:** Spread a thin layer of masa (about 1/4 cup) onto each corn husk or square of parchment paper, leaving about 1 inch of space around the edges. Spoon about 2-3 tablespoons of the beef birria filling onto the center of the masa.
- 10.
Fold the corn husk or parchment paper in half, then fold up the bottom end. If using parchment paper, you can tie it with kitchen twine to secure it.
- 11.
**Steam the Tamales:** Fill a large pot with about 1 inch of water. Place a steamer basket inside, ensuring the water level is below the basket. Arrange the tamales upright in the steamer basket.
- 12.
Cover the pot and steam for 45-60 minutes, or until the masa is firm and pulls away from the corn husk or parchment paper easily. Check the water level periodically and add more if needed.
- 13.
**Serve:** Remove the tamales from the steamer and let them rest for a few minutes before serving. Serve hot with the reserved consommé for dipping. Garnish with chopped cilantro and onion if desired.