Creamy Crunch Peanut Butter Blondie Squares
Let’s take a little trip down memory lane—back to the school cafeteria where the smell of peanut butter treats drifting from the kitchen made you forget all about math class. These Creamy Crunch Peanut Butter Blondie Squares are inspired by that exact nostalgic vibe, but trust me, they’re way better than you remember. These bars are thick, chewy, and loaded with rich peanut butter flavor, topped with a velvety peanut butter frosting that practically melts in your mouth. They’re sweet, soft, a little salty, and 100% irresistible.
They’ve got that “lunch lady magic” but with a homemade touch that brings all the cozy feels. Whether you’re baking them for a weekend get-together, packing them in lunchboxes, or sneaking one after dinner (midnight snack, anyone?), these bars are always a hit. And hey, if you sneak a few spoonfuls of frosting along the way… that’s part of the fun, right?
So grab your apron and get ready to make a treat that feels like a warm hug in dessert form. These cookie bars are a game-changer—simple to make, hard to stop eating.
Why You’ll Love Creamy Crunch Peanut Butter Blondie Squares
This recipe isn’t just about the ingredients—it’s about creating moments. Whether you’re cooking for a casual family dinner, hosting a get-together with friends, or simply indulging in some comforting flavors for yourself, this dish is versatile enough to fit the occasion. Here’s why it’s a favorite:
Versatile: These bars are perfect for potlucks, picnics, birthdays, bake sales—you name it. They’re easy to pack, serve, and devour.
Budget-Friendly: You’ve likely got most of these pantry staples on hand already. No fancy ingredients needed to get that old-school flavor you’ll crave again and again.
Quick and Easy: No rolling, scooping, or chilling—just mix, pour, bake, and frost. It’s a breeze even for beginner bakers.
Customizable: Add chocolate chips, swirl in some jelly for a PB&J twist, or toss in crushed pretzels for a salty crunch. These bars are your peanut butter canvas.
Crowd-Pleasing: Kids, adults, picky eaters—everyone loves a good peanut butter bar. They’re a total crowd-pleaser and always the first dessert to disappear.

Disclosure: This post contains affiliate links.If you click and make a purchase, I may earn a small commission at no extra cost to you.
Ingredients in Creamy Crunch Peanut Butter Blondie Squares
Here’s the magic of these bars—they’re made with pantry staples, but the flavor? Out of this world. Let’s break it down:
Peanut Butter
The heart of the recipe! Creamy peanut butter gives these bars their rich, nutty flavor and soft, fudgy texture.
Brown Sugar
Adds deep, caramel-like sweetness and keeps the bars moist and chewy.
Butter
Melted butter brings richness and that buttery bakery-style flavor we all love in a cookie bar.
Eggs
Help bind everything together and create that soft, slightly dense texture that makes every bite dreamy.
Vanilla Extract
Just a splash brings all the flavors together and adds a warm, sweet aroma.
All-Purpose Flour
The base of the batter that gives structure without making things cakey or dry.
Baking Powder
Gives the bars a gentle lift so they’re thick and tender but not crumbly.
Salt
Balances the sweetness and enhances the peanut butter flavor—it’s the secret behind why these bars are so addictive.
Powdered Sugar (for frosting)
Makes the frosting silky and smooth, perfect for that luscious peanut butter topping.
More Peanut Butter (yes, more!)
For the creamy frosting layer—because you can never have too much peanut butter, right?
Milk
Helps the frosting reach the perfect spreadable consistency.
(Note: the full ingredients list, including measurements, is provided in the recipe card directly below.)
Instructions
Let’s dive into the steps to create this flavorful masterpiece:
Preheat Your Equipment
Preheat your oven to [temperature], and line a 9×13-inch baking pan with parchment paper or lightly grease it. You want easy cleanup and clean edges when you slice.
Combine Ingredients
In a large bowl, mix the melted butter, brown sugar, and peanut butter until smooth. Beat in the eggs and vanilla extract. Stir in the dry ingredients—flour, baking powder, and salt—until just combined. The batter will be thick and glorious.
Prepare Your Cooking Vessel
Pour the batter into your prepared baking dish and use a spatula to spread it out evenly. Press it gently into the corners so it bakes up nice and uniform.
Assemble the Dish
Once spread, give the pan a gentle tap on the counter to release air bubbles and smooth the surface. This helps the bars bake evenly with a soft center and perfect top.
Cook to Perfection
Bake for [time duration], or until the edges are lightly golden and a toothpick inserted in the center comes out clean (a few moist crumbs are okay—just not raw batter!).
Finishing Touches
Let the bars cool completely in the pan—this part is hard, but worth it. While they cool, whip up the peanut butter frosting by mixing peanut butter, powdered sugar, and milk until silky. Spread the frosting over the cooled bars in a thick, dreamy layer.
Serve and Enjoy
Slice into squares and dig in! These bars are perfect slightly chilled, room temp, or even warm if you’re impatient. Every bite is soft, sweet, and packed with peanut buttery bliss.
How to Serve Creamy Crunch Peanut Butter Blondie Squares
These bars are ridiculously easy to serve, but if you want to take it up a notch, here are some fun ideas:
With Ice Cream: A scoop of vanilla ice cream on a warm square? Absolute heaven.
Drizzled with Chocolate: Melt some chocolate and drizzle it over the top for a peanut butter cup vibe.
Cut into Bites: Make mini squares or bites for party trays or kids’ lunchboxes.
Topped with Peanuts: Add chopped salted peanuts on the frosting for extra crunch.
Stacked and Gifted: Wrap up a few in wax paper and twine for the cutest edible gift.
Additional Tips
Prep Ahead: You can make the bars a day before and frost them just before serving. They taste even better the next day!
Spice It Up: Add a pinch of cinnamon or a swirl of Nutella for something fun and different.
Dietary Adjustments: Use a natural peanut butter or substitute with almond butter for a different flavor twist.
Storage Tips: Store bars in an airtight container at room temp for up to 4 days, or in the fridge for a firmer texture.
Double the Batch: Feeding a crowd? Double the recipe and bake it in a larger pan or in two batches. These freeze beautifully too!
FAQ Section
Q1: Can I use crunchy peanut butter?
A1: Absolutely! It adds a bit of texture and extra peanut flavor—so good.
Q2: Can I make these gluten-free?
A2: Yes, just use a 1:1 gluten-free flour blend that’s meant for baking.
Q3: How do I store leftovers?
A3: Keep them in an airtight container for up to 4 days, or freeze for up to 2 months.
Q4: Can I make this dish ahead of time?
A4: Yes! These are great make-ahead bars. Just bake, cool, frost, and store until you’re ready to serve.
Q5: Can I add chocolate chips?
A5: Oh yes, toss in a handful of mini chocolate chips for a little extra indulgence.
Q6: What’s the best way to cut them cleanly?
A6: Chill the bars before slicing and use a sharp knife cleaned between cuts.
Q7: Can I skip the frosting?
A7: You can, but you’ll miss that luscious layer that takes them over the top.
Q8: Are these safe for nut allergies?
A8: Unfortunately not unless using a nut-free butter substitute like sunflower seed butter.
Q9: Can I use less sugar?
A9: You can reduce the sugar a bit, but it may affect the texture and flavor. Try cutting ¼ cup first and taste-test.
Q10: What’s the best bakeware for this?
A10: A metal or glass 9×13-inch pan works best. Metal gives you crispier edges; glass bakes more evenly.
Conclusion
These Creamy Crunch Peanut Butter Blondie Squares are more than just dessert—they’re a mood. Sweet, chewy, comforting, and full of nostalgic vibes, they bring all the cozy joy of a childhood treat but with a grown-up glow-up. Make a batch for someone you love (yourself included), and watch the smiles roll in. Trust me—this one’s a keeper.
Print
Creamy Crunch Peanut Butter Blondie Squares
- Prep Time: 20 minutes
- Cook Time: 20 minutes
- Total Time: 1 hour (including cooling and frosting)
- Yield: 24 bars 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Description
Soft, chewy cookie bars inspired by classic lunch lady peanut butter treats, topped with a rich and creamy peanut butter frosting.
Ingredients
- 2 cups flour
- 2 cups sugar
- 1 ½ cups peanut butter
- 3 sticks butter (1 ½ cups)
- 1 tsp baking soda
- 1 tsp vanilla
- 1 tsp salt
- 4 cups powdered sugar
- 2 eggs
- ½ cup milk
Instructions
- Preheat oven to 400°F (200°C). Grease a cookie sheet.
- In a bowl, mix flour, sugar, baking soda, and salt. Set aside.
- In another bowl, whisk together milk, vanilla, and eggs. Set aside.
- Melt butter and 1 ½ cups of peanut butter in a saucepan over low heat until smooth.
- Combine melted mixture with the dry ingredients, then stir in the egg mixture until fully combined.
- Spread the batter evenly onto the prepared cookie sheet.
- Bake for 20 minutes or until golden and set. Let cool completely.
- For the frosting: melt remaining butter and peanut butter, then mix in milk and powdered sugar until smooth.
- Spread frosting over the cooled bars evenly.
- Allow frosting to set before slicing and serving.
Notes
- Ensure bars are completely cooled before frosting to prevent melting.
- Use creamy peanut butter for a smoother texture or chunky for added crunch.
- Store in an airtight container for up to 5 days.
Nutrition
- Serving Size: 1 bar
- Calories: 320
- Sugar: 28g
- Sodium: 210mg
- Fat: 18g
- Saturated Fat: 7g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 35mg