Yield: Enough for about 12 mugs
For the batter
1 stick unsalted butter, at room temperature
2 cups dark brown sugar
½ teaspoon vanilla extract
¾ teaspoon ground cinnamon
½ teaspoon ground ginger
¼ teaspoon nutmeg
¼ teaspoon dried orange peel
1/8 teaspoon ground clove
Pinch cayenne pepper
Pinch salt
Freshly brewed coffee (We used our classic blend Corsica.)
Dark rum
Method
Place batter ingredients in a medium-sized mixing bowl, and cream together (using a spatula) until well combined. If making ahead, transfer to a container with tightly fitting lid and refrigerate. Pull out of the refrigerator about an hour before serving to let the mixture warm up to room temperature.