Make the Pumpkin Spice Syrup (Optional):

1. Combine water, brown sugar, granulated sugar, pumpkin purée, and pumpkin pie spice in a small saucepan over medium heat.
2. Stir continuously and bring to a gentle simmer. Let it cook for about 5 minutes, allowing flavors to meld.
3. Remove from heat, stir in vanilla extract, and strain the syrup through a fine mesh strainer to remove solids.
4. Let it cool completely before using. Store in the refrigerator for up to a week.

Make the Pumpkin Cold Foam:

1. In a medium mixing bowl, combine heavy cream, milk, pumpkin purée, maple syrup, pumpkin pie spice, and vanilla extract.
2. Use a milk frother to whip the mixture until it becomes light, airy, and doubles in volume. (If using a blender, pulse for 20–30 seconds until frothy.)
3. If the foam is too thick, add a splash of milk and continue frothing until the desired consistency is reached.

Assemble Your Drink:

1. Fill a tall glass with cold brew or iced coffee and add ice.
2. Sweeten with vanilla syrup or the prepared pumpkin spice syrup if desired.
3. Spoon the pumpkin cold foam on top, letting it float over the coffee.
4. Garnish with a sprinkle of pumpkin pie spice or cinnamon for the perfect fall touch.
5. Serve immediately and enjoy!