- The coffee liqueur adds subtle richness and enhances the chocolate flavor. If you don’t have it, use 1 teaspoon instant espresso powder (dissolved in the hot cream) or a tablespoon of strong brewed coffee for a similar depth. Other liqueurs work nicely, too—try Grand Marnier for a hint of orange, Amaretto for almond flavor, or Frangelico for a touch of hazelnut.
- Make-Ahead and Reheating Instructions: You can make the chocolate sauce up to a week ahead and store it in an airtight container in the refrigerator. It will firm up as it chills, so when you’re ready to serve, warm it gently over low heat or in short bursts in the microwave, stirring often, until smooth and pourable again. If it seems too thick, whisk in a splash of cream or milk to loosen the consistency.