Brass Ingot

Nothing in this list is craftable in turn, so one Brass Ingot is a single step: 3 units of material drawn from 2 base items, plus 1 crystal.

That bill outweighs 3,373 of the 13,602 recipes tracked here and 451 of the 2,216 Goldsmith ones, and 9,374 recipes nest deeper.

Both raw materials are gathered, and no spot for either is timed, so nothing in the tree waits on the Eorzean clock.

Brass Ingot is itself consumed by 94 further recipes, spanning seven of the eight crafting classes.