Iron Ingot

Nothing in this list is craftable in turn, so one Iron Ingot is a single step: 3 units of material drawn from a single base item, plus 1 crystal.

That bill outweighs 3,373 of the 13,602 recipes tracked here and 407 of the 1,441 Armorer ones, and 9,374 recipes nest deeper.

Its single raw material is gathered, and no spot for it is timed, so nothing in the tree waits on the Eorzean clock.

Iron Ingot is itself consumed by 113 further recipes, spanning seven of the eight crafting classes.