For a richer flavor, use whole milk or half-and-half. Adjust the amount of pumpkin spice and vanilla syrups to your preference. Start with less and add more to taste. For a dairy-free option, use almond milk, soy milk, or oat milk. Homemade pumpkin spice syrup can be made by combining pumpkin puree, sugar, water, and pumpkin pie spice. Simmer until thickened. If you don't have an espresso machine, strong brewed coffee can be substituted, but the flavor will be slightly different. For a festive twist, sprinkle a pinch of pumpkin pie spice or cinnamon on top of the whipped cream.