Titanium Ingot

Taken all the way down to base materials, one Titanium Ingot is 2 crafting steps deep and needs 1 intermediate — Titanium Nugget ×1 — which resolves to 4 distinct raw materials totalling 11 units, plus 9 crystals.

That bill outweighs 5,999 of the 13,602 recipes tracked here and 555 of the 1,441 Armorer ones, and 4,464 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 4 are burned by the intermediates, so the real crystal cost is 5 Ice Crystal and 4 Fire Crystal.

The chain crosses two disciplines — Armorer to Lv 56 and Blacksmith to Lv 54 — 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.

Titanium Ingot is itself consumed by 76 further recipes, spanning six of the eight crafting classes.