Our Peanut Butter Mousse Cups with chocolate ganache and homemade whipped cream are the perfect rich and creamy dessert to cool off on warm days. Top them with chopped peanut butter cups, chocolate shavings, or crushed peanuts. With just 15 minutes of prep time, these are easy to make and even easier to enjoy! Allow the mousse to chill for at least 1 hour before serving for best texture. Can be used between layer cakes, to stuff cupcakes, or as a pie filling. Gluten-free.