Taco Bell Cheddar Crisps, FIRE! Sauce Flavor. They sell them at Kroger and 7-Eleven stores. They're kind of expensive for such a small bag of baked snacks, but I had a $1.00 digital coupon. The only ingredients are cheddar cheese and seasoning, unlike most junk food. Fire! Sauce Flavor is rated Fierce, 3/5 peppers spice level on the back of the bag. They're good, and once in a while one of them actually brings the fire. The (MILD) Sauce Flavor is rated Warm, 1/5 peppers spice level, but to me it tastes closer to 0/5 half of the time. Almost like plain cheese, but I like plain baked cheese snacks too. To me they seem to get warm toward the bottom of the bag. They make NACHO Flavor too but I haven't seen those in the store.
https://tacobellcravings.com/ P.S. If you mixed a bag of Mild and a bag of Fire flavor together in a bowl I think it would be great. You'd have a good amount of spiciness without your tongue feeling like it's sweating, which is how mine feels right now.