Put the macadamia milk into a deep pot over medium-low heat. Whisk in the cocoa powder and sweetener until the clumps of cocoa have dissolved. Heat until steaming but not simmering, then pour into 3 large or 4 small mugs. If desired, add 1/4 teaspoon of flavored extract of your choice to each mug.
Macros per serving (if serving 4): 77 calories, 1 gram net carbs, 2 grams protein, 6 grams fat.