Soak the cashews and simmer the dates while you work on the next steps.
In a mixing bowl, add the nondairy milk, chia seeds, nutmeg, cinnamon, ground cloves, cardamom, salt and vanilla. Stir the ingredients with a whisk and let set for 10 minutes.
Drain and discard the water from the cashews and the water from the dates. Add the cashews and the dates to your blender, along with the nondairy milk mixture and the banana. Blend until ridiculously creamy and smooth, at least 2 full minutes.
Sprinkle with a bit of fresh grated nutmeg and garnish with a cinnamon stick before serving.
This drink is really yummy served cold or warm!