Storage: Keep truffles in an airtight container in the refrigerator for up to 2 weeks. Allow them to come to room temperature for 10 minutes before serving for the best texture and flavor.
Variations: If you do not have anise liquor, you can substitute with vanilla extract or rum, though the flavor profile will change significantly.
Tips: Ensure your double boiler is clean and dry to prevent seizing of the chocolate. If the mixture becomes too thick while cooling, you can add a teaspoon of warm water to loosen it slightly.