How to Make It
In a small bowl, cover the ancho chile with hot water and let stand until softened, about 20 minutes. Drain and mince the ancho. In a small bowl, whisk the ancho with all of the remaining ingredients except the salmon.
Add all but 1/4 cup of the marinade to a baking dish. Add the salmon fillets and turn to coat. Cover and refrigerate the salmon for at least 1 hour and up to 4 hours.
Light a grill. Grill the salmon fillets over moderate heat, turning once, until lightly charred and nearly cooked through, 6 to 8 minutes. Transfer the salmon to plates and serve with the reserved marinade.