Philosopher's Sandwich

Taken all the way down to base materials, a batch of 3 Philosopher's Sandwich is 2 crafting steps deep and needs 1 intermediate — Dark Rye Flour ×1 — which resolves to 6 distinct raw materials totalling 12 units, plus 24 crystals.

That bill outweighs 6,221 of the 13,602 recipes tracked here and 773 of the 1,058 Culinarian ones, and 4,464 recipes nest deeper.

Only 16 of those crystals go into the final step; the other 8 are burned by the intermediates, so the real crystal cost is 16 Fire Crystal and 8 Water Crystal.

Every step is Culinarian work, from a Lv 81 intermediate up to the Lv 88 finish, so one class covers the whole chain.

5 of the 6 raw materials match a gathering node, none of them timed; the other 1 comes from vendors, drops or content this site does not track.

Philosopher's Sandwich is itself consumed by 1 further recipe, all of them Weaver recipes.