Peanut Butter Lunch Lady Cookie Bars

These Peanut Butter Lunch Lady Cookie Bars are a delightful treat that brings together the rich flavors of peanut butter and a soft, chewy texture that is sure to satisfy any sweet tooth. Perfect for sharing with friends and family or enjoying as a special treat for yourself.

Why You’ll Love This Recipe:

  • Rich peanut butter flavor in every bite
  • Soft and chewy texture that melts in your mouth
  • Easy to make and perfect for any occasion


  • 2 cups flour
  • 2 cups sugar
  • 2 large eggs, beaten
  • 1 ½ cup peanut butter, divided
  • 1 ½ cups (3 sticks) unsalted butter, softened
  • ½ cup milk + 2 tablespoons, divided
  • 1 teaspoon baking soda
  • 1 teaspoon vanilla extract
  • 1 teaspoon salt
  • 4 cups powdered sugar


  1. Preheat oven to 400°F. Grease a large cookie sheet or line with parchment paper.
  2. Mix together dry ingredients: flour, sugar, baking soda, and salt. Set aside.
  3. Whisk together ½ cup milk, vanilla extract, and eggs. Set aside.
  4. In a saucepan, melt 1 cup (2 sticks) of butter and 1 cup peanut butter, bring to a boil. Remove from heat and slowly add the flour mixture, followed by the milk and egg mixture. Mix until well combined.
  5. Pour the batter onto the cookie sheet, spreading it evenly to the edges. Bake for 20 minutes or until a toothpick inserted in the center comes out clean. Cool completely before frosting.
  6. For the frosting: In a saucepan, bring 1 stick of butter and ½ cup peanut butter to a boil. Add 2 tablespoons of milk and slowly mix in powdered sugar until well combined. Pour the frosting over the cake, spreading it evenly to the edges. Allow the frosting to cool and set before serving.
  • Prep Time: 15 minutes
  • Cooking Time: 20 minutes
  • Total Time: 35 minutes
  • Kcal: Calories may vary based on serving size
  • Servings: 12 bars


Store these Peanut Butter Lunch Lady Cookie Bars in an airtight container at room temperature for up to 3 days, or in the refrigerator for up to a week. For longer storage, you can freeze them for up to 3 months in a freezer-safe container.

Recipe Tips:

  • For a variation, try adding chopped nuts or chocolate chips to the batter for an extra crunch.
  • Make sure to allow the bars to cool completely before cutting to get clean, neat slices.
  • These bars are great for bake sales, potlucks, or as a lunchbox treat for kids.

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