1.Spray 5 quart slow cooker with cooking spray. Pour bag of chips into slow cooker.
2.In a microwave safe bowl, add butter and melt. Add in ranch dip mix and Cajun seasoning. Mix well.
3.Pour mixture over chips and with a rubber spatula or wooden spoon, gently toss the mixture over the chips to coat all of them. Try not to break up the chips.
4.Cook uncovered on high for about 1 hour 45 minutes to 2 hours. Stir a few times.
5.When finished, place onto a rimmed cookie sheet that’s been lined with parchment paper. Let cool completely. Gently place in a bowl or serving dish. Enjoy!