This is more of a California Fusion revamp of the original, rather than a traditional colcannon. Potatoes are the staple of the traditional Irish diet and colcannon was, most likely, mostly potatoes with a little bit of vegetable added in—usually cabbage. Jan is always pushing me to add more high fiber vegetables and to cut back on the simple starches—i.e. potatoes—so mine is now about a 50/50 ratio of potato to veg. I also doubt that chicken broth or garlic were readily available in a humble traditional Irish cottage.