When you make a guajillo sauce, many recipes call for the chiles to be briefly toasted on a comal or skillet first. Then, since they are dried peppers, they have to be rehydrated. This is done either ...
Transfer to a bowl and cover with hot water. Let soak 30 minutes ... Serve tacos immediately with the Guajillo salsa, thinly sliced Romaine lettuce, a lime wedge, and crumbled queso fresco ...