Ingredients
Equipment
Method
- Place the softened butter in a medium heatproof bowl or stand mixer bowl fitted with the paddle attachment.
- Add the brown sugar, cinnamon, vanilla extract, nutmeg, allspice or cloves, and salt to the butter. Beat with an electric hand mixer on high speed until the mixture is fluffy and smooth, about 2 minutes.
- Bring 2 cups of water to a boil. Let the water cool for about 30 seconds so it is not actively bubbling.
- Carefully pour the slightly cooled water into the butter mixture. Add the dark rum and beat with the mixer on medium speed until the butter dissolves and the mixture is frothy, 1 to 2 minutes.
- Divide the mixture between 4 mugs.
- Top with whipped cream if you are using it. Sprinkle with more freshly grated nutmeg and garnish each mug with a cinnamon stick.
Notes
You can prepare the butter batter ahead of time and store it in the refrigerator for up to one week. When ready to serve, follow steps 3 through 5, using hot (but not boiling) water.
