In a small saucepan or microwave safe bowl, add the cocoa powder, sugar, salt, and boiling water and whisk until combined. Place the saucepan over medium heat and bring it to a boil.
Once it begins to boil, reduce the heat to low and slowly whisk in the almond milk, ensuring there is no separation. Whisk in the vanilla extract and let everything simmer for 1-2 minutes.
Remove the hot chocolate from the heat and pour into four glasses.
Notes
TO STORE: Prepared hot chocolate should be stored in the refrigerator, covered, for up to three days.TO REHEAT: Either microwave the beverage for 30-40 seconds or in a small saucepan over the stove. Be sure to whisk everything together very well, to ensure there is no separation.