I love peanut butter cups. Those of you who have my cookbook More Great Good Dairy Free Desserts Naturally know the story.
Refrigerate in a covered container for up to 3 days. Serve chilled. or at room temperature. Mousse can be frozen (and defrosted too).
Ideas for serving:
Scoop the chilled peanut butter mousse into a serving dish. Pour enough of the melted chocolate over each serving, so that you make Chocolate Peanut Butter Cups. The chocolate will harden.