Prepare pumpkin puree. Either open a can of unsweetened pumpkin puree, or sweet potato puree, or even butternut squash puree, and measure out 1 cup.
Or peel and boil either a pumpkin or sweet potatos until mushy - 45 minutes? - and blend with a bit of water until you have a fresh puree of either.
Wash your zucchini, and spiralize or chop super finely. You want it to turn to water in your smoothie. You don't have to peel but you should peel at least roughly if you want it to disappear better - say for kids - or if you didn't buy organic.
Blend, and taste it. If it is too watery, add more zucchini or puree, or even a bit of dairy-free yogurt. If it is not sweet enough, add a bit more maple syrup or dates. If it is not spicey enough, add more pumpkin pie spice.
Pour in a tall glass, swirl in some yogurt. I also top with cinnamon, grated zucchini, a few walnuts and enjoy! Don't forget, tastes better with a glass straw!
Drink right away for freshest flavor and nutrient potency. Or refrigerate for 24 hours and re-blend. You can also freeze in ice cube trays to be blended up later.
How to Make Pumpkin Pie Spice
You can buy this flavor spice in the market. However, if you want to pull it together, use this blend: 6 tbsp cinnamon, 4 tsp ginger, 4 tsp nutmeg, 2 tsp allspice, 1 tsp cloves