I ate these growing up. I don't know if my Mom happened to be out of potatoes one day and just tried carrots or if she got them out of a book. She doesn't remember, but I seem to remember her just substituting the carrots because we were out of potatoes. They're much better when you keep the carrots and onion almost to equal amounts
I love Salsa & Chips, however I cannot have distilled vinegar and all the bottled store brands contain vinegar. Here's one I came up with on my own, it is mild in hotness and a slight sweetness. Hope you like it.