Game Mechanics: Baking: Pike Fillets recipe not working

[Portasaurus]

The Pike Fillets recipe is not combining.

Currently trying: 1 "Jug of Sauces" + 1 "Highland Pike" in the Rivervale oven and I'm not getting any results.

p99 baking wiki page lists this as a recipe, and it is backed up by an entry on eqtraders

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Thanks for any attention this gets and thanks again a million times for this awesome server.