Island Prism ★★

Taken all the way down to base materials, a batch of 3 Island Prism is 2 crafting steps deep and needs 1 intermediate — Perilla Oil ×9 — which resolves to 2 distinct raw materials totalling 20 units, plus 30 crystals.

That bill outweighs 7,876 of the 13,602 recipes tracked here and 1,010 of the 1,058 Culinarian ones, and 4,464 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 24 are burned by the intermediates, so the real crystal cost is 24 Fire Crystal, 3 Fire Cluster and 3 Water Cluster.

Every step is Culinarian work, from a Lv 82 intermediate up to the Lv 90 finish, so one class covers the whole chain.

1 of the 2 raw materials matches a gathering node, none of them timed; the other 1 comes from vendors, drops or content this site does not track.

Of the intermediates, Perilla Oil has the widest use: 31 recipes call for it, spanning two of the eight crafting classes.