Hazırlanışı
1Cut pork into 3 chunks and place in a large saucepan. Add onion, garlic, bay leaves, and salt and cover with water. Bring to a boil; skim foam from surface. Reduce heat, cover, and simmer for 1 hour. Remove pork and let cool. Strain broth and reserve.
2Bring a pot of water to a boil while pork is cooking. Add tomatoes, arbol chiles, and guajillo chiles, and boil until chiles are soft, about 5 minutes. Remove with a slotted spoon, reserving cooking water, and allow to cool.
3Place corn husks in a bowl, cover with boiling water, and soak for 30 to 60 minutes. Drain, place on a work surface, and cover with a clean, damp towel.