Melt the chocolate. You can use a microwave or a bain-marie. Let it cool down until warm/room temperature.
Whisk the aquafaba with a mixer using the ballon attachment, or electric whisk until stiff peaks are formed, around 10 minutes.
Dissolve the coffee in the water and add it to the chocolate.
Add the maple syrup (if applicable).
Slowly, add the chocolate mixture to the aquafaba, stirring carefully with a silicone spatula.
Do not overmix, because the mousse can lose its air.
Scoop the mixture in serving bowls and refrigerate for at least 1 hour.
Top it with a garnish of your choice when ready to serve.
Enjoy ;)
