I have been craving these for years, and I can't find a recipe.
Frito-Lay made Ketchup flavored Doritos a few years ago. Unfortunately they didn't sell very well and were discontinued not to long after being introduced. Me and a few friends were obsessed with them. I won't admit to how many bags I ate, but it consumed most of my snack budget :)
I've called Frito-Lay many times, and talked to a few of their delivery staffers about their lack of Ketchup Doritos, and the response was not good. The chance of them ever coming back is very bad.
So I turn to my last hope: Making them myself! Do you have a recipe for them? Even if it isn't the actual recipe, if it's your own proprietary blend I'm willing to give it a shot.