2 oz. rakija
1 oz. dark creme de cacao
1 cup ice
1/2 cup of half & half
marshmallow creme (aka fluff)
Combine the above (except fluff) in a standard cocktail shaker. Mix and then pour into a martini glass. Make sure the rim of the glass is generously kissed with fluff.
For fluffing the rim of the glass, take a spatula and spread a 1/4 inch deep circle of fluff out on a foil-covered board that is wider than the diameter of your glass. Dip the rim and slowly twist up for the fluff to stick.
Rakija is Serbian for plum brandy or Šljivovica -- only Stara Sokolova is served in my house but if you don't have to incur the wrath of Uncle Dusan, you can find fairly decent, inexpensive ones at BevMo.