this one nice

Sheridan's is a recently created liqueur called Sheridan's,
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, with a
chocolatey-nut after finish. The other section is filled with a
white liqueur of milk white chocolate.
When pouring into a low ball glass, the white liqueur should be
gently floated on top of the black liqueur.