Root 100 - Phillips brand 100 proof Root Beer Schnapps.
It's the best liqueur I've ever had. If you can find it definitely give it a shot.
Also, I have a question in general about hard liquor. I've noticed that after a few days of purchasing a hard liquor (Root 100, Jim Beam, etc), these hard crystals form in the bottom of the bottle. They resemble rock candy but with the coloring of the liquor in the middle of them.
Has anyone else experienced this? Is this normal and what makes this happen? Thanks.