1oz(2 tablespoons) pear brandy such as poire William
Equipment:
a narrow 3-oz glass
Put cassis in glass. Hold a regular teaspoon (not a measuring spoon) upside down at a diagonal over cassis, with only the tip touching the cassis at edge of glass. Slowly pour elderflower liqueur over curve of spoon to float it on top of cassis.
Using a clean, dry teaspoon, slowly pour brandy into glass in same manner, creating a third layer. Do not stir before drinking.