Aimee -- I think your restaurant is probably the exception. Most "balsamic vinegarettes" at restaurants seem to have a lot of sugar added. In fact I have stopped even asking for balsamic vinegar at restaurants since they usually give me their sugary "vinegarette" version. Usually now I just ask for vinegar and oil, and if they actually give me balsamic vinegar and olive oil, it's a bonus (which actually happened the other day at a local pub).