Botanist's Doublet ★

Taken all the way down to base materials, one Botanist's Doublet is 3 crafting steps deep and needs 4 intermediates — Undyed Woolen Cloth ×2, Hippogryph Leather ×1, Silk Thread ×1 and 1 other — which resolve to 5 distinct raw materials totalling 9 units, plus 21 crystals.

That bill outweighs 5,492 of the 13,602 recipes tracked here and 665 of the 1,844 Leatherworker ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 16 are burned by the intermediates, so the real crystal cost is 10 Lightning Shard, 6 Earth Crystal, 3 Lightning Crystal and 1 other kind.

The chain crosses two disciplines — Leatherworker to Lv 50 and Weaver to Lv 50 — so no single class can finish it unaided.

3 of the 5 raw materials come out of the ground, and one of them is time-gated: Silkworm Cocoon (1:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Silk Thread has the widest use: 175 recipes call for it, spanning six of the eight crafting classes.