1 1/2 shot Absolut Citron
1 splash Galliano
1/2 slice Lemon
1/4 tsp Sugar
1/4 tsp 151 Proof Rum

Pour Absolut Citron into shot glass and top off with a splash of
Galliano. Place one half lemon slice flat on the rim of the shot
glass, put some sugar on the slice and soak the sugar with 151
proof rum. -- Just before drinking, ignite the sugar. Blow the
flame out when the it seems to caramelize the sugar. Lick the
sugar off the lemon slice, down the vodka mixture, then either
suck the juices or bite the pulp of the lemon.