Nana Ruth threw together this 3 ingredient masterpiece right before the neighborhood backyard party. We all watched in shock as the entire tray vanish

These 3-ingredient chocolate peanut butter bars are the kind of last-minute miracle that saves a busy day. The recipe comes from my Nana Ruth, who was famous for pulling a pan of these together right before a neighborhood backyard party and still managing to look completely unbothered.

They start with a buttery-tasting graham cracker crumb and peanut butter base, then get covered with a smooth, glossy layer of melted chocolate chips. The whole tray sets up in the fridge