Mayonnaise is an artisan good produced from eggs using a Mayonnaise Machine. Players can make it with any chicken or duck egg, and its quality and value depend on the egg used. This creamy condiment enhances the value of eggs, making it a profitable product to sell. Additionally, it serves as an ingredient in various recipes and is liked by most villagers, making it a useful item for gifting to build friendships.
The item ID for Mayonnaise is 306
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. [306]
Spawning Using the Animal MethodTo spawn 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 [306] and you will receive the 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 Mayonnaise while using a character, you will need to create a new character and name it with the item id with brackets like this [306]. You will then receive the 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.