Blend base – Add silken tofu, maple syrup (if using), banana (or dates), vanilla, cocoa powder, salt, tahini, and optional peanut butter to a food processor or blender. Blend until completely smooth, scraping down the sides halfway.
Melt chocolate – Place chocolate chips or chopped dark chocolate in a microwave-safe bowl. Heat in 30-second intervals, stirring between each round until fully melted.
Combine – Pour the melted chocolate into the mousse mixture and blend again until smooth, glossy, and evenly mixed.
Portion – Divide into 4 serving bowls or jars.
Chill – Refrigerate for at least 3 hours for a thicker mousse texture, or serve immediately for a softer consistency.
Finish & serve – Top with fresh fruit, mint leaves, cacao nibs, extra chocolate, or enjoy plain.