Scoop insides of eggplants and put into a blender (Vitamix preferred for extra smoooothness)

Blend until super smooth

Scoop eggplant out of blender and into bowl - add several tablespoons of cocoa powder and stir until blended

Add several drops of stevia, stir until blended

Repeat the cocoa powder/stevia until you get a combination that is to your tastes

If adding the avocado, blend into mixture - it will make the mousse a little bit more 'creamy/light' versus 'rich/fudgy' and adds a bit of extra fat.