Not sure if this is the basic recipe, but hope you enjoy!

Ingredients:
3 tsp. chocolate powder
2/3 tsp. coffee (or 1/3 a mug of brewed coffee)
1 1/2 tsp. sugar
2 tbsp. milk/cream
whipped cream
hot water
1 scoop of ice cream (any flavour you want)
1/3 tsp. ground cinnamon (or 1 cinnamon stick)

Steps:
1. In a mug, put in chocolate powder, coffee, milk/cream, sugar.
2. Add hot water. Don't fill it to the top to make room for the whipped cream. Stir.
3. Add ice cream and stir until blended completely.
4. Top with whipped cream, and sprinkle with cinnamon.