a cutting board. Using a sharp knife, cut into 16 squares (or smaller bite-size pieces if serving a crowd). Wipe the knife between cuts for cleaner edges and a tidy, overhead-photo-ready look.
Serve the bars straight from the glass casserole dish on the counter or transfer them to a platter. Store any leftovers covered in the refrigerator for up to 5 days. For the best texture, let them sit out for 5–10 minutes before serving so the base softens just a bit while the chocolate top stays firm.
Variations & Tips
For a slightly sweeter base, you can add 1–2 tablespoons of powdered sugar to the graham cracker and peanut butter mixture before pressing it into the dish, though this keeps it to three main ingredients. If you like a stronger peanut flavor, bump the peanut butter up to
