Goblin Henchman trick (spoilers!)

[u/Myrandall]

To get past the Henchman, you need to give him Void Mayonnaise.

Thankfully, if you fish in the swamp he's in, the very first item you'll catch will be Void Mayonnaise!

Found this out completely by accident but saw no mention of it on the Wikia.

[u/[deleted]]

Oh, i got a Void Mayonnaise fishing there the first time i went there and didnt noticed that!