Description
These Peanut Butter Lunch Lady Bars are soft, chewy, and packed with rich peanut butter flavor. Made with oats, brown sugar, and topped with a creamy peanut butter frosting, they’re the ultimate nostalgic dessert perfect for bake sales, lunchboxes, and family gatherings.
Ingredients
- 1 cup (2 sticks) unsalted butter, softened
- 1 cup creamy peanut butter
- 1 cup granulated sugar
- 1 cup packed light brown sugar
- 2 large eggs
- 1 teaspoon pure vanilla extract
- 2 cups all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 2 cups quick oats
- 1/2 cup creamy peanut butter
- 4 tablespoons unsalted butter, softened
- 2 teaspoons vanilla extract
- 3–4 tablespoons milk, as needed
- 2 cups powdered sugar
Instructions
- Preheat oven to 350°F (175°C). Grease or line a 9×13-inch baking pan with parchment paper.
- In a large bowl, cream together the butter, peanut butter, granulated sugar, and brown sugar until light and fluffy.
- Add eggs and vanilla extract, mixing until fully combined.
- In a separate bowl, whisk together flour, baking soda, and salt.
- Gradually mix the dry ingredients into the wet ingredients.
- Fold in the quick oats until evenly combined.
- Spread the batter evenly into the prepared baking pan.
- Bake for 20–25 minutes or until the edges are golden and the center is set. Allow bars to cool completely.
- For the frosting, beat together peanut butter, softened butter, vanilla extract, powdered sugar, and enough milk to create a smooth spreadable consistency.
- Spread frosting over cooled bars, slice, and serve.
Notes
- For cleaner slices, chill the bars for 20 minutes before cutting.
- You can add chocolate chips for extra sweetness.
- Store bars in an airtight container for up to 5 days.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American