The key here is that you have an unsweetened mix, and then can add whatever sweetener of choice you want.
Ingredients to whisk/shake together:
1 cup unsweetened cocoa powder
3 t cinnamon
2 t ginger powder
1 1/2 t nutmeg
1 t cayenne pepper
Keep in mind when using cayenne that there is a range of spiciness - some cayenne pepper is much milder than others.
