
In a small saucepan over medium heat, whisk together the almond milk, cocoa powder, and maple syrup until smooth and warm, about 5 minutes; be careful not to boil.
Add the chopped dark chocolate and whisk until fully melted and smooth. Turn off the heat, then stir in the vanilla extract and salt.
Taste and adjust the sweetness if needed, then pour into mugs. Top with coconut whipped cream or vegan marshmallows, if desired.