A Crumbl-inspired single-serve cookie recipe, ready in just 15 minutes! This treat features an Oreo/cookies-and-cream base, topped with a cream cheese frosting, rainbow sprinkles, and more oreo pieces!

A Crumbl-inspired single-serve cookie recipe, ready in just 15 minutes! This treat features a rich cookies-and-cream base, topped with a creamy peanut butter mousse and extra chocolate and peanut butter cups for a delicious finishing touch.