When buying glycerin, make sure the bottle does not say “for external use only”; you want edible glycerin, which can be found online and at many natural foods stores.
Arrange individual ¾-inch foil candy cups on a baking sheet or simply line it with a silicone liner or lightly buttered foil or parchment paper. Combine in a small bowl and set aside:
Prepare:
As soon as you remove the pan from the heat, sprinkle the coffee mixture over the surface of the syrup and stir in gently but thoroughly. Drop the syrup from the edge of the spoon into ¾-inch-wide patties onto the baking sheet, or drop into the foil cups.
When cool, wrap the candies individually in cellophane. Store in an airtight container at room temperature for up to 1 month.