01 - Combine peanut butter and cream cheese in a large mixing bowl. Beat with electric mixer until smooth and creamy.
02 - Add powdered sugar to the mixture and blend until fully incorporated and smooth.
03 - Gently fold Cool Whip into the peanut butter mixture using a spatula. Mix just until combined and airy, being careful not to overmix.
04 - Distribute the mousse evenly among serving glasses or bowls.
05 - Refrigerate for at least 1 hour to allow flavors to meld and achieve optimal texture.
06 - Top with chopped roasted peanuts and chocolate shavings or mini chocolate chips if desired.