Ingredients:
Hot Buttered Butter Rum
1 1/2 ouncesButter Rum (below), at room temperature
1 ounceButter Batter (below), at room temperature
Butter Rum & Butter Batter
1/2 cupplus 1 tablespoon unsalted butter, divided
12 1/2 ounces(half of a 750–milliliter bottle) dark rum
1/2 cupbrown sugar, lightly packed
1/2 teaspoonvanilla extract
1/4 teaspoonground cinnamon
1/8 teaspoonfreshly ground black pepper
1/4 to 1/2 small nutmeg, finely grated
Directions:
Bring 6 ounces (¾ cup) of water to a boil in a medium pot. Remove from the heat and let sit while you combine the Butter Rum and Butter Batter in a heatproof mug. Pour the water into the mug and stir until totally combined. Serve immediately.
Make the Butter Rum: Melt 1 tablespoon of butter. Combine with the dark rum in a small, freezer-proof container. Stir briefly and let sit at room temperature for 8 to 10 hours. Then transfer to the freezer for 3 hours. Once the butter has solidified, pour the mixture through a fine-mesh filter, such as a gold coffee filter or cheesecloth (don’t press on the butter solids). Discard the butter and transfer the Butter Rum to an airtight container. It will keep in the refrigerator or freezer for up to 6 months.
Meanwhile, make the Butter Batter: Melt the remaining ½ cup of butter. In a small bowl, whisk together the melted butter with the brown sugar, vanilla, cinnamon, black pepper, and nutmeg. If not using immediately, measure 1-ounce pours into a silicone ice cube tray, then freeze until firm. Once solid, remove the portions from the mold and transfer to a freezer bag or container for up to 2 months.