Enchanted Durium Ink

Taken all the way down to base materials, one Enchanted Durium Ink is 2 crafting steps deep and needs 1 intermediate — Cottonseed Oil ×1 — which resolves to 3 distinct raw materials totalling 9 units, plus 11 crystals.

That bill outweighs 5,492 of the 13,602 recipes tracked here and 1,090 of the 1,591 Alchemist ones, and 4,464 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 7 are burned by the intermediates, so the real crystal cost is 7 Fire Shard and 4 Water Crystal.

The chain crosses two disciplines — Alchemist to Lv 64 and Culinarian to Lv 63 — so no single class can finish it unaided.

All 3 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Enchanted Durium Ink is itself consumed by 7 further recipes, spanning two of the eight crafting classes.