The Vice Grip
Build this drink in a slender, straight-sided liqueur glass or flute. Pour coffee liqueur in first, then add the chilled Brachetto. In a small cup, pour a couple ounces of porter and blend with a small battery powered latté frother or immersion blender until a thick froth has developed. Let the froth sit for a few seconds to stabilize and carefully spoon a ¾-inch head on top of the cocktail.