I had a roommate many years ago that was from a Caribbean island, but I don't remember which one. His general technique for cooking almost anything was to start with a hot saute pan, add oil, a good amount of sugar, and a homemade hot sauce that had lots of mustard as well as chili heat in it. Almost similar to the Vietnamese caramel chicken. Can anyone identify which island(s) this technique might be from? Is there a name for it? Niceties to the technique?