Can I make birria ahead of time?
Yes. The beef and broth can be made up to 3 days ahead and refrigerated. Reheat gently before assembling tacos.
What can I use instead of Oaxaca cheese?
Fresh mozzarella, Chihuahua cheese, or Monterey Jack work well as substitutes for melting.
How long does the beef need to cook?
Beef short rib and shank typically need 2.5 to 3 hours at a low simmer until completely tender and shredding easily.
Can I use flour tortillas instead of corn?
Corn tortillas are traditional and hold up better when dipped in broth and crisped. Flour tortillas will absorb more liquid and become soft.
Where do I find dried ancho and guajillo chiles?
Look for them in the international aisle of most supermarkets, Latin markets, or online specialty retailers.