Brew 1 cup of coffee and let it cool to room temperature. You can also chill it in the fridge for a bit.
In a small bowl, whisk together the coconut milk, heavy cream (if using), keto sweetener, vanilla extract, and a pinch of cinnamon until smooth.
Fill a tall glass with ice cubes. Pour the cooled coffee over the ice, then add the creamy coconut mixture on top. Give it a good stir to combine.
Sprinkle a pinch of cinnamon on top for a little extra flair. Add a straw, sip, and enjoy your tropical treat!
