Creating a delectable Hot Buttered Rum Cocktail is straightforward when you follow these simple steps:

1. In a mug, combine the softened butter, brown sugar, cinnamon, nutmeg, and salt.
2. Pour in the dark rum, stirring gently to mix the ingredients.
3. Heat water until almost boiling. Carefully pour the hot water into the mug until it’s full, stirring as you do to dissolve the butter and sugar.
4. Taste the cocktail and adjust sweetness or spice levels if needed.
5. For a final touch, top with a dollop of whipped cream, if desired.
6. Add a cinnamon stick for garnish, enhancing the aroma and visual appeal.

These easy steps will ensure you create an incredible cocktail that everyone will enjoy.