The trick is to cook it low and slow, which makes the crockpot the perfect equipment for this homemade queso recipe. If the cheese dip isn't going to be eaten within the next hour or so, set the crockpot to warm to prevent the cheese from burning on the bottom. Also, make a point to stir it thoroughly every 45 minutes or so to be extra careful. You can also spray the insert of your crockpot nonstick cooking spray before adding the cheese dip ingredients to ensure nothing gets stuck and burns.