Hazırlanışı
1Remove stems and seeds from the ancho chiles, guajillo chiles, and pasilla chiles. Lightly toast the chiles in a dry comal or skillet over medium heat for 30 seconds per side until fragrant.
2Place the toasted ancho chiles, guajillo chiles, and pasilla chiles in a heatproof bowl and cover with hot water. Let them rehydrate for 20-30 minutes until soft.
3While chiles rehydrate, cut the beef chuck roast into 5 cm cubes. Season the beef chuck roast generously with salt.