Line muffin tin with cupcake liners. In a medium sized mixing bowl mix together the crushed graham crackers, powdered sugar, and peanut butter. (I just softened mine for about 40 seconds in the microwave). Mix together until combined.
Melt the chocolate chips in a microwave safe bowl stirring 30 seconds at a time until smooth. Add a heaping teaspoon into the bottom of each cupcake liner and spread along the bottom. Follow it by a heaping tablespoon of the peanut butter mixture. Lastly add a heaping teaspoon of the melted to the chocolate and spread evenly over the peanut butter layer. Refrigerate for about an hour until set and firm.