Step 1

To make the batter: In a small saucepan over medium heat, combine the brown sugar, butter, honey, cinnamon, nutmeg, cloves, and salt. Heat, stirring frequently, until the butter is completely melted and the sugar is dissolved, about 5 minutes. Remove from heat and stir in the vanilla.

Step 2

To make each cocktail, combine the hot water with about a quarter of the batter in a mug, and then stir vigorously to combine.

Step 3

Add in the rum and stir to combine. Taste, and add additional batter if you like it a bit sweeter or spicier.

Step 4

Top with a large dollop of whipped cream and fresh grated nutmeg.