In a small saucepan, warm the unsweetened almond milk over low heat. Be careful not to bring it to a boil.
In a separate bowl, mix the unsweetened cocoa powder and Erythritol.
In your coffee mug, add the brewed coffee, peppermint extract, and the cocoa-Erythritol mixture. Stir until the cocoa and sweetener dissolve.
Pour the warmed almond milk into the coffee mixture. If you prefer a creamier texture, add the heavy cream as well.
Taste your mocha and adjust the sweetness or peppermint flavor to your liking by adding more sweetener or peppermint extract if necessary.
Top your Keto Peppermint Mocha with a dollop of whipped cream and garnish with dark keto chocolate shavings. Serve immediately.