Add all of the ingredients to a small saucepan and whisk together until well combined. It will take 1-2 minutes but ensuring a smooth mixture prior to heating will prevent a clumpy hot cocoa.
Place the pot over medium low heat and cook for 4-7 minutes until steaming, whisking often and keeping a close eye so that it doesn't boil over.
Carefully pour into a mug, add garnish if desired and serve.
Notes
LeftoversThe ingredients tend to separate a bit when stored, so I recommend enjoying it immediately. However, if needed, you can allow the hot chocolate to cool for 30 minutes at room temperature and then store in a jar or airtight container in the refrigerator for up to 1 day.Rewarm in a small saucepan over medium heat, whisking constantly, for 4-5 minutes until heated through.Microwave DirectionsAdd all of the ingredients to a large mug and whisk until smooth. Microwave for 3-4 x 30 second intervals, stirring after each, until hot.*Nutritional estimate calculated with 1% cow's milk and pea protein isolate.