Pour your Gatorade into a large pot and cook on medium heat. When it starts to boil, you can turn off the heat.
Pour in the Jell-O mix packet into the Gatorade. Stir until the Jell-O powder dissolves completely.
Let the Jell-O cool in the fridge for a few hours (about six). Once it is solid, it is ready to eat. You can cut the Jell-O into squares, if you like, and serve it that way.