Birria Tacos

Ingredients

• ***For the birria de rez:***
• 1 (2-pound) beef chuck, boneless
• 1 pound oxtail or short ribs
• kosher salt, to taste
• 1 teaspoon neutral oil, such as vegetable or avocado
• ***For the sauce:***
• 7 ancho chiles, ends trimmed and de-seeded
• 7 guajillo chiles, ends trimmed and de-seeded
• 3 chiles de árbol, ends trimmed and de-seeded
• 1 white onion, halved
• 6 cloves garlic
• 4 Roma tomatoes
• 1 tablespoon black peppercorns
• 1 teaspoon dried Mexican oregano
• 1 teaspoon cumin seeds
• 1 teaspoon coriander seeds
• 1/4 teaspoon ground cloves
• 1/2 Mexican cinnamon stick, optional
• 3 bay leaves
• cold water, to taste
• 1 teaspoon apple cider vinegar
• 3 cups beef broth, divided
• ***For the tacos:***
• 1/4 cup cilantro, minced
• 1/4 white onion, minced
• 1 lime, juiced
• 8 corn tortillas
• 3 ounces Oaxacan or mozzarella cheese