Add Chex cereals, and peanuts, to a very large bowl then set aside.
Add Ranch Dressing Mix ingredients to a small bowl then stir to combine and set aside.
To the melted butter, add the buffalo sauce and whisk together.
Add the ranch dressing to the butter sauce.
Pour the butter mixture over the cereals and stir, coating it all.
Use two baking sheets, cover with parchment paper and spread out the coated cereal evenly between the two baking sheets.
Bake in a preheated oven, stirring and switching racks every fifteen minutes for one hour.
Remove from the oven. Cool to room temperature and add the pretzels, cheese curls and cheese crisps. Stir and store in an airtight container.
Notes
Selected ingredients are based on current serving sizes measured by the Monash University FODMAP App at the time of publishing. As always, follow your gut and modify as needed.