Kirimu Boots of Healing ★★★★

Taken all the way down to base materials, one Kirimu Boots of Healing is 3 crafting steps deep and needs 5 intermediates — Kirimu Leather ×3, Cashmere Cloth ×1, Platinum Nugget ×1 and 2 others — which resolve to 8 distinct raw materials totalling 28 units, plus 26 crystals.

That bill outweighs 9,936 of the 13,602 recipes tracked here and 1,414 of the 1,844 Leatherworker ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 22 are burned by the intermediates, so the real crystal cost is 11 Wind Cluster, 8 Earth Cluster, 3 Lightning Crystal and 3 other kinds.

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

3 of the 8 raw materials come out of the ground, and 2 of them are time-gated: Platinum Ore (4:00) and Silkworm Cocoon (1:00). The widest gap between consecutive opening times is 21 Eorzean hours, about 61 real-world minutes.

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