To start collecting the potion you have to talk to Twitchy the witch, who lives in the Medieval Sulfur Fields. There are 7 option ingredients in the game SpongeBob SquarePants: The Cosmic Shake.
SpongeBob SquarePants: The Cosmic Shake All Potion Ingredient Locations
When you talk to her, Twitchy will task SpongeBob with finding 7 potion ingredients scattered throughout the world. Here is where to find all 7 potion ingredients in SpongeBob SquarePants: The Cosmic Shake.
1) Potion Ingredient
The first potion ingredient is not far from Twitchy. Just glide over to the entrance to the Meanderson River portion of the world. It will be waiting in the giant log.
2) Potion Ingredient
The next ingredient is pretty close as well. Once you are in the Meanderson River area, you can find the potion up on an easy-to-reach cliff to the right of the main path.
3) Potion Ingredient
The third potion ingredient is found in the Garden Maze. Before you even enter the winding halls of the maze, the potion can be found in the fountain plaza, near the entrance to the maze.
4) Potion Ingredient
You can spot another potion ingredient under the bridge that leads from the Castle Courtyard to the Bard’s Audition. Drop down on top of the boxes beneath the drawbridge to see the quest item’s location.
5) Potion Ingredient
The next ingredient you need to get for Twitchy is found near the Bard Audition arena, in front, and to the left.
6) Potion Ingredient
There is another potion ingredient right in front of the Blacksmith shop in the Castle Courtyard.
7) Potion Ingredient
The final potion ingredient is found in the Dormitory Hall.