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.

Pan of chocolate peanut butter bars cooling on a kitchen counter

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 and slices into dense, crumbly bars that somehow disappear faster than you can set them on the counter.

Serve these bars chilled or at cool room temperature so the chocolate top stays firm but easy to bite into. They’re perfect alongside a big pitcher of iced tea or lemonade at a backyard party, or with coffee for the grown-ups and