-Milk of choice-one of my favorites is Silk Unsweetened
-Pumpkin pie spice
Combine the above and enjoy! The amount of each will depend on what type of smoothie you prefer. For example, if you like sweeter smoothies add more banana or if you like thin smoothies add more milk.
Looking for a colder smoothie? Use frozen bananas or add ice.
For a more flavorful smoothie add some vanilla extract.