01 - In a medium bowl, beat the peanut butter, powdered sugar, and vanilla extract together until smooth and well combined.
02 - Gently fold in the thawed Cool Whip until no streaks remain, taking care not to deflate the mixture and maintain the fluffy texture.
03 - Spoon the finished mousse into individual serving dishes, glasses, or ramekins for presentation.
04 - Refrigerate the portions for at least 1 hour to allow the mousse to chill completely and achieve proper set consistency.
05 - Before serving, sprinkle the chopped roasted peanuts and mini chocolate chips over the top of each portion, if desired.