Combine all ingredients in a small saucepan over medium heat.

Stir constantly until the mixture comes to a boil.

Reduce heat to low and simmer for 5 minutes, stirring occasionally.

Remove from heat and let cool slightly.

Pour the mixture into candy molds or a small baking sheet lined with parchment paper.

Let the cough drops set in the refrigerator or freezer for at least 30 minutes.

Store the cough drops in an airtight container in the refrigerator for up to 2 weeks.