Void Mayonnaise is a unique artisan good produced by processing a Void Egg in a Mayonnaise Machine. This dark, sinister-looking condiment is more valuable than regular mayonnaise and has a few specific uses, including as a gift for certain characters who favor its unusual qualities, and as an ingredient in the Witch's Bundle at the Community Center. It embodies a touch of the supernatural, reflecting the mysterious essence of the Void Egg it's made from.
The item ID for Void Mayonnaise is 308
This ID will work on PC/Mac (Steam), PS4, PS5, XBOX One, and Nintendo Switch.
Spawning items in Stardew Valley is a little unsual and is not done with commands. You will need to utilize what is called a cheat to set your character's or animal name to the item id. To do this you cannot use just the item id, you will need to surround the item id with brackets. Ex. [308]
Spawning Using the Animal MethodTo spawn Void Mayonnaise while using an animal, you will need to head over to Marine's Ranch and purchase an animal. Once you have have an animal chosen, name the animal with the item id with brackets like this [308] and you will receive the Void Mayonnaise item. This method can be done using an existing character and is convenient but will cost some gold every time you want an item.
Spawning Using the Character MethodTo spawn Void Mayonnaise while using a character, you will need to create a new character and name it with the item id with brackets like this [308]. You will then receive the Void Mayonnaise item when you speak to a villager. This method is easy and free but cannot be performed on an existing character and you will be stuck with that name unless its edited.