Warm almond milk in a small saucepan over medium heat, stirring occasionally to prevent scorching. Add unsweetened cocoa powder and sweetener to the milk, whisking until fully combined.
Once the milk is hot (but not boiling), add the dark chocolate chips and stir until they are fully melted and incorporated.
Remove the saucepan from heat and stir in the vanilla extract.
Pour the mocha hot chocolate into your favorite mug, ready to be enjoyed.
Add a dollop of whipped cream if desired. Sprinkle cocoa powder, drizzle chocolate sauce, or add chocolate shavings on top for a decorative and indulgent finish.
Serve immediately and enjoy the comforting richness of this low-carb mocha hot chocolate.