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Lunch Lady Peanut Butter Bars Recipe

Lunch Lady Peanut Butter Bars Recipe

4.9 from 28 reviews

These Lunch Lady Peanut Butter Bars are a nostalgic treat reminiscent of school cafeteria desserts. A buttery oat base topped with creamy peanut butter and rich chocolate frosting, these bars are perfect for any peanut butter lover.

Ingredients

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For the Bars:

  • 1 cup unsalted butter, softened
  • 1 cup creamy peanut butter
  • 1 cup granulated sugar
  • 1 cup packed light brown sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 2 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 2 cups quick oats

For the Topping:

  • 1 1/2 cups creamy peanut butter
  • 2 cups powdered sugar
  • 1/4 cup milk
  • 1/2 teaspoon vanilla extract
  • 1/4 cup unsalted butter, melted
  • 1/4 cup cocoa powder

Instructions

  1. Preheat and Prepare: Preheat oven to 350°F. Grease a 13×18-inch baking sheet.
  2. Mix Wet Ingredients: In a large bowl, cream together softened butter, 1 cup peanut butter, granulated sugar, and brown sugar. Add eggs and vanilla, mix well.
  3. Combine Dry Ingredients: In a separate bowl, whisk flour, baking soda, and salt. Gradually add to wet mixture. Stir in oats.
  4. Bake: Spread dough in prepared pan. Bake for 18–22 minutes until golden.
  5. Add Peanut Butter: Spread 1 1/2 cups of peanut butter over warm bars. Let it melt as bars cool.
  6. Make Frosting: Mix powdered sugar, milk, vanilla, melted butter, and cocoa until smooth.
  7. Finish Bars: Spread frosting over peanut butter layer. Cool completely before slicing.

Notes

  • Bars can be refrigerated for a firmer texture.
  • Try using crunchy peanut butter or drizzle with melted chocolate for variation.

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