Ingredients
1 oz Appleton Estate Extra rum
1 oz simple syrup
2 dashes Fee Bros. whiskey-barrel-aged bitters
1 pinch mixed spice
4 oz Guinness stout
grated nutmeg
1 tsp butter
Preparation
Combine all ingredients, except nutmeg and butter, in saucepan, and gently heat. Pour into an Irish coffee glass. Top with grated nutmeg, add butter, and stir well.
For mixed spice (¼ cup): Combine 1 tbsp each ground allspice, ground cinnamon, ground nutmeg; 2 tsp ground mace; and 1 tsp each ground cloves, ground coriander, and ground ginger. (Store in a jar.)