In a small bowl, beat the butter, brown sugar, cinnamon, cloves, ginger and nutmeg together until smooth. Chill for 20-30 minutes or until firm.
While waiting, boil the water or brew the coffee. Spoon 1 tablespoon of the spiced butter into a coffee mug. Pour 1 ounce rum over the butter and top with 1 cup of hot ware or coffee. Stir to combine.
Repeat with the remaining butter, rum and coffee.
Serve immediately with whipped cream and a sprinkle of nutmeg.
Video
Notes
Spiced Butter can be made up to 10 days in advance and stored in the refrigerator until ready to serve.