Step 1

In a medium-sized bowl, combine the brown sugar, butter and spices until light and fluffy.

Step 2

Portion 2 tablespoons of the spice butter into each cocktail glass.

Step 3

Measure 1 1/2 oz of rum into each glass and top with 3/4 cup boiling water.

Step 4

Stir well to break down the butter.

Step 5

Add a splash of orange juice and a sprinkling of orange zest.

Step 6

Serve hot.