Add all ingredients to a blender and blend until smooth and velvety. I recommend reserving about ¼ of the milk when you first blend everything up, then check the thickness and add a bit more milk, and pulse to thin as necessary.
Please note that if you don't have a high powered blender you might need to add all of the milk to get things going.
*The cinnamon, nutmeg and cloves can all be replaced by ½ teaspoon of pumpkin pie spice. The smoothie is still great with just cinnamon and none of the other spices so feel free to omit them if you don't have them in your pantry.