Looking for a nostalgic treat that’s quick to make and packed with rich peanut butter flavor? These Peanut Butter Lunch Lady Bars deliver chewy, dense bars topped with creamy peanut butter frosting — perfect for school lunches, after-school snacks, or anytime you crave a classic peanut butter dessert
Why You’ll Love This Recipe
Classic peanut butter flavor everyone loves
Simple ingredients you probably already have on hand
Soft, chewy bars with a creamy, decadent frosting
Easy to make in one pan, no fancy equipment required
Perfect for bake sales, school snacks, or casual dessert
Ingredients Breakdown
Bar Base:
2 cups all-purpose flour: Provides structure to the bars.
2 cups granulated sugar: Adds sweetness.
1 teaspoon baking soda: Helps the bars rise slightly.
1 teaspoon salt: Balances the sweetness.
½ cup whole milk: Moistens the batter.
1 teaspoon vanilla extract: Adds flavor depth.
2 large eggs, beaten: Bind ingredients and add richness.
1 cup (2 sticks) unsalted butter: Adds moisture and buttery flavor.
1 cup creamy peanut butter: Gives the bars their signature peanut butter taste and texture.
Frosting:
½ cup (1 stick) unsalted butter: Creates a creamy base for the frosting.
½ cup creamy peanut butter: Intensifies the peanut butter flavor.
2 tablespoons milk: Thins the frosting for spreading.
4 cups powdered sugar: Sweetens and thickens the frosting.
Tips and Tricks
For even bars, spread batter carefully and smooth the top before baking.
Allow bars to cool completely before frosting to avoid melting the frosting.
Use creamy peanut butter for smooth texture; chunky peanut butter will change the consistency.
Store bars in an airtight container to maintain freshness.
Variations and Customizations
Add mini chocolate chips to the batter for a peanut butter-chocolate twist.
Sprinkle chopped peanuts on the frosting before it sets for extra crunch.
Substitute half the sugar with brown sugar for a deeper caramel flavor.
For a healthier version, use natural peanut butter and reduce sugar slightly.
Pairing Suggestions
Serve with a cold glass of milk or your favorite coffee for the perfect snack.
Pair with fresh fruit like apple slices or bananas for a balanced treat.
Great accompaniment to vanilla or chocolate ice cream for dessert.
Storage Instructions
Store bars in an airtight container at room temperature for up to 3 days.
Refrigerate for longer freshness up to 1 week; bring to room temperature before serving.
Bars can be frozen for up to 2 months. Thaw overnight in the fridge.
Popular Questions
Can I use peanut butter powder instead of creamy peanut butter?
Powdered peanut butter is much drier and won’t provide the same richness; it’s best to stick with creamy peanut butter for this recipe.
Can I use salted butter instead of unsalted?
Yes, but reduce or omit the added salt in the dry ingredients to avoid an overly salty taste.
How do I know when the bars are done?
The bars are ready when a toothpick inserted into the center comes out clean or with a few moist crumbs.
Can I make these bars gluten-free?
You can substitute all-purpose flour with a gluten-free flour blend, but texture may vary slightly.
