Peanut Butter Lunch Lady Bars
If you grew up in Utah, Lunch Lady Peanut Butter Bars were basically a rite of passage. Thick, chewy, and slathered in chocolate frosting. My version is even better, and yes, this one earned its spot in my cookbook for a reason.
Reasons You’re Gonna Be Obsessed
No weird ingredients: You probably already have everything you need in your pantry, so you can make these now! No grocery run needed!
Texture perfection: Soft, chewy base + creamy peanut butter + fudgy chocolate = actual heaven. Trust me, they are to die for!
Classic, but better: These peanut butter bars are SO GOOD, I literally inhale them like a raccoon in a dumpster. It’s one of my favorites!
Ingredients Needed
Peanut butter: Creamy peanut butter is best, but if you prefer a little more crunch in your bars, try it with the crunchy peanut butter.
Rolled oats: If you do not have rolled oats, graham cracker crumbs will also work. The bars will not be as full but will have the same concept.
Frosting: Make these even easier and buy store bought to spread over the peanut butter filling.
How to Make Peanut Butter Bars
This nostalgic lunch lady bar recipe only takes about 35 minutes! They are dangerously good, and your whole family will devour them! Here’s how you make them!
Bars
Cream together: Preheat the oven to 350 degrees Fahrenheit, then cream together the brown sugar, white sugar, and peanut butter.
Blend: Add the eggs, salt, baking soda, rolled oats, and flour. Mix to combine.
Bake: Spread the dough into a 15 X 9 X 2-inch baking sheet pan. Bake for 15 minutes and cool completely before frosting.
Peanut Butter/Frosting
Spread on the peanut butter layer: After cooling, spread 1 cup of peanut butter on top of the bars. Soften the peanut butter in the microwave for 30 seconds so it spreads easier.
Melt the butter/ Add the cocoa powder: For the frosting, melt the butter in a medium saucepan over medium heat. Add the cocoa powder and whisk to combine.
Whisk the frosting ingredients: Remove from the heat and add 3 ½ cups powdered sugar, 1 teaspoon vanilla extract, and 6 tablespoons milk. Whisk together until silky and smooth.
Frost: Pour the frosting over the peanut butter layer and spread it evenly on top. Allow the frosting to set for a few minutes before cutting the peanut butter bars and enjoying!
Alyssa’s Pro Tip
Line the Pan: Line your pan with foil or parchment paper for easy removal. Just lift the whole thing out to slice clean, even bars like a boss.
Peanut Butter Bars
Ingredients
Peanut Butter Bars
1 cup brown sugar 1 cup granulated sugar1 cup unsalted butter1 cup creamy peanut butter2 large eggs1 teaspoon salt1 teaspoon baking soda2 cups rolled oats2 cups all-purpose flour
Peanut Butter & Frosting
½ cup unsalted butter 3 tablespoons unsweetened cocoa powder3 ½ cups powdered sugar1 teaspoon vanilla extract6 tablespoons milk1 cup creamy peanut butter for spreading
Instructions
Peanut Butter Bars
Peanut Butter & Frosting
Video
Notes
Nutrition
More Peanut Butter Desserts
If you love peanut butter, then you are surely going to love these other peanut butter recipes, like this yummy Chocolate Peanut Butter Pie, these easy Flourless Peanut Butter Cookies, and these new Peanut Butter and Jelly Cookies!