1. Make the Cookie Dough
Preheat oven to 350°F (175°C). Line an 8x8-inch pan with parchment paper.
In a bowl, whisk melted butter, peanut butter, brown sugar, and granulated sugar until smooth.
Mix in egg and vanilla.
Gently fold in flour, baking soda, and salt until just combined.
2. Bake to Perfection
Press dough evenly into the pan.
Bake 18-22 mins until edges are golden (center will look slightly underdone—it sets as it cools!).
3. Make the Frosting (If Using)
Beat butter and peanut butter until smooth.
Gradually add powdered sugar, milk, and vanilla, mixing until creamy.
Spread over cooled bars.
4. Slice & Devour!
Let cool 10 mins, then cut into squares.
💡 Pro Tips
🔥 Extra gooey? Underbake slightly (18 mins).
🔥 No frosting? Drizzle with melted chocolate instead!
🔥 Crunchy twist? Press Reese’s Pieces or chopped peanuts into the top.
❓ FAQs
Can I use crunchy peanut butter?
Yes! Adds a nice texture.
How to store?
Room temp: 3 days | Fridge: 1 week (if frosted).
Can I double the recipe?
Yes! Use a 9x13-inch pan and bake 20-25 mins.
Final Thoughts
These Peanut Butter Lunch Lady Cookie Bars taste like a hug from childhood—warm, sweet, and impossible to resist. Save this recipe… you’ll make it again and again!
Love retro desserts? Try these next:
Magic Cookie Bars (7-Layer Bars)
Homemade Oatmeal Cream Pies
Snickerdoodle Blondies
Made them? Tag us with your peanut butter masterpiece! 📸😍
