Prep the avocados. Halve, pit, and scoop the flesh into a food processor or high-speed blender. Make sure they’re ripe and green with no brown streaks.
Add the base ingredients. Add cocoa powder, powdered sweetener, nut butter, almond milk, vanilla, salt, and espresso powder (if using).
Blend until silky. Process until completely smooth, stopping to scrape down the sides. If it’s too thick, add almond milk 1 teaspoon at a time.
The texture should be thick mousse—pipeable but not runny.
Taste and adjust. Sweetness varies by sweetener and cocoa. Add a little more sweetener or a pinch more salt as needed. Remember flavors mellow when chilled.
Chill to firm. Transfer mousse to a bowl, press plastic wrap directly onto the surface, and chill for 45–60 minutes until scoopable.
Shape the bites. Use a small cookie scoop or teaspoon to portion the mousse.
Roll gently with clean hands into 1-inch balls. If sticky, dust hands with cocoa or chill longer.
Optional: coat in chocolate. Melt sugar-free dark chocolate chips in a microwave-safe bowl in 20–30 second bursts, stirring between each until smooth. Dip each bite with a fork, tap off excess, and set on parchment.
Finish with garnish. While the coating is still wet, sprinkle with coconut, crushed freeze-dried berries, or a pinch of flaky salt.
For uncoated bites, dust lightly with cocoa.
Set and serve. Refrigerate 15–20 minutes to firm the coating. Enjoy chilled for the best texture and flavor.