Preheat the oven to 250 degrees F (120 degrees C). Line a large rimmed baking sheet with parchment paper.

Pour Cheetos into a large bowl.

Combine light corn syrup, brown sugar, and butter in a saucepan over medium-high heat. Stir constantly and bring the mixture to a boil. Cook for 1 minute.

Pour the mixture over the Cheetos, and working quickly, stir to coat them.

Spread the coated Cheetos onto the prepared baking sheet in an even layer.

Bake in the preheated oven for 1 hour, stirring every 15 minutes.

Remove from the oven and allow to cool completely. Break any clumps into small pieces. Serve immediately or store in an airtight container.