And when you want a bit of variety, the key to good French Onion Soup is red port. Otherwise it is just beef broth with sauteed onions and cheese.
I have to admit, I still have a sweet tooth - Andres Almond Cream sherry is my favourite for before dinner, and it is best chilled - there is a bottle in my fridge at this moment. I had an amazing old amber port a few years ago, though, it was something to appreciate and pay attention to. The LCBO hasn't had it since :-(