Bring the soy sauce to a boil, add the sugar and slices of ginger and stir. As soon as it boils, remove from the heat and add the balsamic vinegar and truffle oil. Sesame oil can be substituted for the truffle oil if you prefer but the sauce will loose some of the unique flavor.
Moser Dragonfly Pot de Creme Cup. This is a less-common polychrome pot de creme cup with a fun dragonfly and floral pattern.