Tucked among the many unexpected treasures in Libreri Mapou are tall bottles of a mysterious ivory liquid. A love potion? A purifying bubble bath? Not exactly, though you could say Kremas Mapou has alchemic properties. Here in this venerable Little Haiti bookstore, the cultural and intellectual heart of Miami's Haitian community, is owner Jan Mapou's homemade contribution to the potable arts. Kremas Mapou is this thick, syrupy drink that doesn't taste quite like anything else. A subtle pang of alcohol -- "sugar cane rhum," as noted on the label -- heats up the rich vanilla-almond-cinnamon mixture just enough to turn it into a deep velvety dream of a cream. A 700-ml bottle costs $13; smaller quantities are correspondingly less, down to a cute little pocket size for $1.