Simmer water and sugar in a pan over medium heat, stirring occasionally, until sugar dissolves.
Add spices and the pumpkin and continue to simmer for 10 minutes, stirring often. Remove from heat and strain through cheesecloth or strainer.
Allow the syrup to cool, then refrigerate in an air tight container.
Heat milk in microwave for 1 minute.
Froth with blender or whisk.
Put syrup in bottom of cup and top with coffee and frothed milk.
Top with whipped cream and a dusting of pumpkin pie spice.