In a separate pot, add guajillo, ancho, and arbol chiles, onion, tomatoes, a Mexican cinnamon stick, bay leaves, and black peppercorns.
Guajillo Chiles 12 chiles
Ancho Chiles 5 chiles
Árbol Chiles 5 chiles
Yellow Onion 0.5 medium
Roma Tomatoes 2 large
Mexican Cinnamon Stick 1 4-inch stick
Bay Leaves 3 leaves
Whole Black Peppercorns 0.5 tsp