Serious Eats: caramelizing onions
In this article the writer suggests slightly caramelizing table sugar and after that toss the onions in the caramelized sugar. My question is - wouldn't you need a fat like butter to transfer heat from the pan to the onions? Does he take for granted we add butter to the caramel? Or does he mean we add sweated onions to the caramel together with the fat?