In a medium saucepan combine together the pumpkin pie spice, the light brown sugar, and water. Boil over medium-low heat then lower the heat and let it simmer for about 10 minutes. (Stir every few minutes)
Add in the pumpkin puree and stir to combine.
Allow the prepared syrup to cool completely, then transfer into a container. Use with drinks or baked goods for a great festive experience!