Extra crispy.
The item id for Bag Chips in unturned is 82. You can use this ID with the commands below to spawn the item, give it to a player or buy it on a modded economy server.
Useable: Consumeable
Size_X: 1
Size_Y: 2
Size_Z: 0.45
Food: 30
ConsumeAudioClip: Sounds/EatCrunchy.mp3