Old-School Peanut Butter Cookie Bars (Lunch Lady Style)

👩‍🍳 Directions:

  1. Preheat oven: 350°F (175°C). Grease or line a 9×13-inch baking dish.
  2. Make the bar base:
    • In a large bowl, cream together butter, peanut butter, granulated sugar, and brown sugar until light and fluffy.
    • Beat in the eggs and vanilla.
    • In another bowl, whisk together flour, baking soda, and salt. Gradually add to the wet mixture until combined.
  3. Bake: Spread the dough evenly into the prepared pan. Bake for 20–25 minutes, until golden but still soft in the center (don’t overbake — you want chewy bars!).
  4. Cool slightly: Let the bars cool for about 15 minutes before frosting.
  5. Make the frosting:
    • Beat together peanut butter, powdered sugar, vanilla, and enough milk to make a smooth, spreadable frosting.
    • Spread evenly over warm bars so it melts in a little.
  6. Set and serve: Allow to cool fully before cutting into squares.

✨ These bars are soft, chewy, and full of peanut butter nostalgia — just like the ones served in school cafeterias back in the day!

Would you like me to also give you a chocolate-peanut butter swirl frosting version (some lunch ladies made it that way)?

Leave a Comment