In a medium bowl, combine the pumpkin puree, maple syrup, and pumpkin pie spice. Mix until smooth and well incorporated.
In a separate glass or large jar, pour the cold brew coffee over a handful of ice cubes.
Add the milk to the cold brew and stir well.
Spoon the pumpkin mixture into the glass with the cold brew and milk. Stir until fully blended. Adjust the sweetness by adding more maple syrup if desired.
If using, top with whipped cream and sprinkle a little pumpkin pie spice on top for garnish.
Serve with a straw or spoon and enjoy your creamy fall-inspired beverage!