Truffle Oil is an artisan good crafted by processing truffles in an oil maker, which takes six hours. This luxurious oil sells for a high price and is used in a variety of cooking recipes. It can also be donated to the Community Center to complete the Chef's Bundle or given as a loved gift to certain villagers, enhancing relationships. The oil's value can be increased with the Artisan Profession.
The item ID for Truffle Oil is 432
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. [432]
Spawning Using the Animal MethodTo spawn Truffle Oil 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 [432] and you will receive the Truffle Oil 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 Truffle Oil while using a character, you will need to create a new character and name it with the item id with brackets like this [432]. You will then receive the Truffle Oil 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.