I usually don’t! I know in some recipes like caramelized onions or sautéed onions and peppers, people like adding all sorts of things like brown sugar, black pepper, and even vinegar. But usually when I’m making this simple shallots side dish for dinner I’m in a rush and just use a handful of ingredients within arms reach of my stove. You’re welcome to choose to use sugar and toss in a pinch of white sugar or brown sugar with the salt.