Crumbl testing locations throughout the United States continue to try out new Limited Time Offer (LTO) desserts. One of the latest, in September 2024, is the Peanut Butter Cup Brownie. This dessert is described as “a decadent brownie topped with velvety peanut butter mousse, a drizzle of chocolate and peanut butter cups.” This dessert is sure to have an upcharge price. As soon as we get all the nutrition facts and the total price, we will update this page. We will also get as many positive and negative taste reviews as well.