1 cup packed brown sugar ½ cup unsweetened cocoa powder ½ cup butter ½ cup milk, half-and-half, or light cream 2 teaspoon vanilla, instant coffee crystals, or instant espresso coffee powder
To Store:
Transfer sauce to an airtight container; cover. Store in the refrigerator for up to 1 week. To reheat, microwave on 100 percent power (high) until warm, stirring every 15 seconds.
