Highland Lancet Window

Taken all the way down to base materials, one Highland Lancet Window is 3 crafting steps deep and needs 3 intermediates — Dark Chestnut Lumber ×6, Clear Glass Lens ×4 and Natron ×4 — which resolve to 4 distinct raw materials totalling 42 units, plus 55 crystals.

That bill outweighs 12,044 of the 13,602 recipes tracked here and 1,260 of the 1,552 Carpenter ones, and 337 recipes nest deeper.

Only 11 of those crystals go into the final step; the other 44 are burned by the intermediates, so the real crystal cost is 30 Wind Crystal, 20 Water Shard and 5 Ice Crystal.

The chain crosses two disciplines — Carpenter to Lv 60 and Alchemist to Lv 28 — 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, Clear Glass Lens has the widest use: 96 recipes call for it, spanning six of the eight crafting classes.