Doman Iron Culinary Knife

Taken all the way down to base materials, one Doman Iron Culinary Knife is 2 crafting steps deep and needs 3 intermediates — Oroshigane Ingot ×2, Pine Lumber ×1 and Slate Whetstone ×1 — which resolve to 4 distinct raw materials totalling 17 units, plus 23 crystals.

That bill outweighs 7,161 of the 13,602 recipes tracked here and 757 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 8 of those crystals go into the final step; the other 15 are burned by the intermediates, so the real crystal cost is 12 Fire Crystal, 7 Wind Crystal and 4 Earth Crystal.

The chain crosses three disciplines — Blacksmith to Lv 65, Carpenter to Lv 64 and Goldsmith to Lv 61 — so no single class can finish it unaided.

All 4 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Oroshigane Ingot has the widest use: 114 recipes call for it, spanning six of the eight crafting classes.