It's required to complete the quest [[Quests#Goblin Problem|Goblin Problem]], by gifting a Void Mayonnaise to the [[Henchman]] guarding the [[Witch's Hut]].
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*Void Mayonnaise is required to complete the [[Quests#Goblin Problem|"Goblin Problem" Quest]]. You must gift one to the [[Henchman]] guarding the [[Witch's Hut]].