IBA official recipe includes:
Components
60 ml – Rum, Spiced or Dark
180 ml – Water, boiling
1 tsp – Butter
1 tsp – Sugar, brown
1 pinch – Cinnamon, ground
1 pinch – Nutmeg, ground
1 pinch – Allspice, ground
1 splash – Vanilla extract
Preparation
Add the butter, sugar, spices, and vanilla extract to a heatproof mug. Pour in the rum, and add the boiling hot water. Stir until mixture is dissolved and thoroughly combined. Serve with whipped cream !
* Notes – Standard garnish – Whipped cream and freshly grated nutmeg or cinnamon stick.
Enjoy ! ADB
In the United States, hot buttered rum dates back to colonial days. During that time many families had their own recipes. It is popular in the fall and winter and is traditionally associated with the holiday season.