In a small saucepan, combine water, brown sugar, molasses, ginger, cinnamon, nutmeg, and cloves over medium heat.
Stir constantly until the sugar dissolves and the mixture comes to a gentle simmer, about 3-4 minutes, then remove from heat.
In a separate saucepan, heat the milk over medium heat until steaming but not boiling, whisking occasionally.
Brew your espresso or strong coffee and divide between two mugs.
Add 2-3 tablespoons of gingerbread syrup to each mug, then pour in the steamed milk.
Top with whipped cream and a light sprinkle of cinnamon if desired, and serve immediately.