Mix the sugar and the water in a saucepan and allow it to boil for some time. Ensure that your heat is at medium-low. Stir the mixture regularly as it cooks for about five minutes.
The second procedure you must do is add pumpkin puree and pumpkin spice to the mixture. During this procedure, measure your pumpkin puree, nutmeg, cinnamon sticks, cloves, ginger, vanilla extract, and pumpkin spice and add them to your first syrup. Let this mixture cook for at least 10 minutes.
Pass your syrup through a cheesecloth to get the final needed syrup.
Carefully pour your syrup into a tight jug or container and store it.
Notes
To prepare a pumpkin spice latte, mix three tablespoons of syrup with two shots of brewed espresso and three-quarters of steamed milk in a jar.