Add drained activated cashews to a high powered blender. Add 2 Tbsp maple syrup, 1 tsp vanilla, and (optional) 3 Tbsp almond milk. Pulse or blend several times to start chopping the nuts to a chunky texture.
Add ½ cup water and begin to blend, revving up from a low power to a high power. If your blender allows it, remove the center cap and slowly stream in the remaining 1 cup of water while the blender is running on a medium-high speed. Alternatively, just add water ½ cup at a time, replacing the lid between each blend. You can adjust the amount of water you add depending on your preferred thickness. I recommend checking it after each ½ cup, or ¼ cup near the end.
Remove the lid and add the spices: 1 tsp cloves, 1 tsp cardamom, 1 tsp nutmeg, 1 tsp ginger, 1½ tsp cinnamon, ¼ tsp salt. Reset the lid, and pulse several times to blend evenly.
(Optional) For a smoother texture, strain through a fine mesh strainer.
Pour into a glass and enjoy fresh, or add to a glass or reusable bottle and store in the fridge for up to a week. Shake before drinking if the cashew milk has settled.