Sherry Rings

I was drinking a leftover bottle of a Spanish sherry we recently served as a dessert wine for a recent foodie event when I noticed the residual, circular rings the sherry left in the glass after being swirled. 

This is a fantastic dessert wine.  It's very sweet and syrup-y in texture, matching perfectly with fruit or lighter ice cream desserts.  It's called Alvear Pedro Ximenez 2000 Anada, rated 95 points by Robert Parker, and goes for about $13 a bottle.  You can pick it up here.