Sheridan's is a liqueur first introduced in 1994. It is produced in Dublin by Thomas Sheridan & Sons.
It is uniquely bottled, consisting of two separate sections, separated by glass, but fused together. One section is filled with a black liqueur, consisting of coffee and whiskey flavors, the other is filled with a white liqueur of milk white chocolate.
When pouring into a lowball glass, the white liqueur should be gently floated on top of the black liqueur.