Looking for a delightful no-bake treat that combines the irresistible crunch of Oreo cookies with the creamy richness of peanut butter? Look no further! These Oreo Peanut Butter Bars are a heavenly mix of flavors and textures that will leave you craving more. Trust me, once you take a bite, you’ll understand why this recipe has become a staple in my dessert repertoire. It’s a simple yet decadent dessert that is perfect for any occasion—be it a gathering, a potluck, or just a sweet treat to enjoy at home.
Why It’s My Go-To

There’s something magical about the combination of Oreo cookies and peanut butter. The contrasting textures of the crunchy cookies and the smooth, creamy peanut butter create an indulgent experience that’s hard to resist. This recipe is not only easy to make but also requires no baking, which means you can whip it up in no time. The layers of flavor from the chocolate, peanut butter, and Oreos come together beautifully, making it an instant favorite for family and friends. Plus, it’s incredibly versatile—you can customize it to your taste!
What You’ll Need
- 30 Oreos – Traditional Oreos work best for that classic flavor.
- 6 tablespoons salted butter – Ensure it’s at room temperature for easy mixing.
- 1 cup salted butter – Melted, to create a rich base.
- 2 cups graham cracker crumbs – These add a delightful crunch and sweetness.
- 2 cups powdered sugar – For sweetness and to help bind the layers together.
- 1 ½ cups creamy peanut butter – Divided for layering and topping.
- 1 cup semi-sweet or milk chocolate chips – Choose your preference for a delicious chocolate layer.
Prep & Cook Tools
- 9×13 inch baking pan – For assembling the bars.
- Mixing bowls – One for the crust and another for the filling.
- Spatula – To spread the mixtures evenly in the pan.
- Microwave-safe bowl – For melting the chocolate chips.
- Measuring cups and spoons – To accurately measure your ingredients.
From Start to Finish: Oreo Peanut Butter Bars

Step 1: Prepare the Oreo Crust
Start by crushing the 30 Oreos into fine crumbs. You can do this by placing them in a food processor or putting them in a zip-top bag and crushing them with a rolling pin. Once you have a fine crumb, combine it with the 6 tablespoons of softened salted butter in a mixing bowl. Stir until the mixture resembles wet sand.
Step 2: Press the Crust into the Pan
Grease your 9×13 inch baking pan lightly to prevent sticking. Pour the Oreo crumb mixture into the pan and press it down firmly to create an even layer. This will be the base of your bars, so ensure it’s compact.
Step 3: Mix the Peanut Butter Filling
In a separate bowl, combine the melted 1 cup of salted butter with 1 cup of creamy peanut butter and the 2 cups of powdered sugar. Mix until smooth and well combined. This will be your luscious filling.
Step 4: Layer the Filling
Spread the peanut butter filling evenly over the pressed Oreo crust in the baking pan. Use a spatula to make sure it’s smooth and covers the entire surface.
Step 5: Melt the Chocolate Topping
In a microwave-safe bowl, combine the 1 cup of chocolate chips. Heat in the microwave in 30-second intervals, stirring in between, until melted and smooth.
Step 6: Pour the Chocolate Over the Bars
Once the chocolate is melted, pour it over the peanut butter layer. Use the spatula to spread it evenly, ensuring that it covers the entire surface.
Step 7: Chill the Bars
Refrigerate the bars for at least 2 hours or until set. This step is crucial as it helps the layers firm up and makes cutting easier.
Step 8: Cut and Serve
Once set, remove the bars from the refrigerator and cut them into squares or rectangles. Serve chilled and enjoy the delightful combination of Oreo and peanut butter in every bite!
Adaptations for Special Diets

- Gluten-Free: Use gluten-free Oreos and graham cracker crumbs to make this recipe suitable for those with gluten sensitivities.
- Dairy-Free: Substitute the butter with a dairy-free alternative and use dairy-free chocolate chips.
- Vegan: For a vegan version, use dairy-free butter and chocolate chips, and ensure the Oreos are suitable for vegan diets.
- Low-Sugar: Opt for a sugar substitute in place of powdered sugar and choose sugar-free chocolate chips if desired.
Watch Outs & How to Fix
When making Oreo Peanut Butter Bars, here are a few common pitfalls to be aware of:
- Grainy Texture: If your peanut butter filling is grainy, make sure to mix thoroughly until smooth. If needed, add a little more melted butter to help it blend.
- Crust Too Crumbly: If the crust falls apart when you cut into it, ensure you pressed it down firmly enough in the pan.
- Chocolate Seizing: When melting chocolate, be careful not to overheat it. If it becomes clumpy, try adding a teaspoon of vegetable oil to smooth it out.
- Bars Not Setting: If the bars are too soft after chilling, return them to the refrigerator for an additional hour or so until they firm up more.
Storage & Reheat Guide
These Oreo Peanut Butter Bars can be stored in an airtight container in the refrigerator for up to one week. They are best served chilled, making them the perfect make-ahead dessert for gatherings. If you want to freeze them, cut the bars into squares, layer them between parchment paper, and store them in a freezer-safe container. They can be frozen for up to three months. To enjoy, simply thaw in the refrigerator overnight.
Ask the Chef
Can I use crunchy peanut butter instead of creamy?
Absolutely! Crunchy peanut butter will add an extra texture to the bars, making them even more delightful. Just make sure it’s well mixed before layering.
What if I don’t have graham cracker crumbs?
If you don’t have graham cracker crumbs, you can substitute with crushed vanilla wafers or even more crushed Oreos for a richer flavor.
How can I make these bars more chocolatey?
To enhance the chocolate flavor, consider drizzling melted chocolate over the top after cutting the bars into squares or adding chocolate chips to the peanut butter layer.
Can I double the recipe for a larger crowd?
Yes, you can easily double the recipe! Just use a larger baking pan or two separate 9×13 inch pans and adjust the chilling time as needed.
Quick Weeknight Wins
- Quick Chocolate Chip Cookies – Another easy dessert that comes together in a flash.
- 15-Minute Cream Cheese Ice Cream – Perfect for those hot days when you need something sweet and refreshing.
- 5-Ingredient Chocolate Peanut Butter Cups – A simple and delicious treat that requires minimal effort.
- No-Bake Cheesecake – A creamy dessert that doesn’t require turning on the oven!
Final Thoughts
These Oreo Peanut Butter Bars are a delightful way to indulge in a sweet treat without the fuss of baking. Their combination of flavors and textures is sure to impress anyone who tries them. Whether you’re enjoying them at a gathering or as a late-night snack, these bars are bound to become a favorite in your home. With just a few simple ingredients and steps, you can create a dessert that looks and tastes like it took hours to prepare. So gather your ingredients, roll up your sleeves, and get ready to enjoy the deliciousness that is Oreo Peanut Butter Bars!

Oreo Peanut Butter Bars
Ingredients
For the Crust:
- 30 pieces Oreos
- 6 tablespoons salted butter softened
For the Filling:
- 1 cup salted butter melted
- 2 cups graham cracker crumbs
- 2 cups powdered sugar
- 1 ½ cups creamy peanut butter divided
For the Topping:
- 1 cup semi-sweet or milk chocolate chips
Instructions
From Start to Finish:
- Step 1: Prepare the Oreo Crust - Crush the 30 Oreos into fine crumbs. Combine with 6 tablespoons of softened salted butter in a mixing bowl until it resembles wet sand.
- Step 2: Press the Crust into the Pan - Grease the 9x13 inch baking pan lightly. Pour the Oreo crumb mixture into the pan and press it down firmly to create an even layer.
- Step 3: Mix the Peanut Butter Filling - In a separate bowl, combine the melted 1 cup of salted butter with 1 cup of creamy peanut butter and 2 cups of powdered sugar. Mix until smooth.
- Step 4: Layer the Filling - Spread the peanut butter filling over the pressed Oreo crust in the baking pan, ensuring it's smooth and covers the entire surface.
- Step 5: Melt the Chocolate Topping - In a microwave-safe bowl, combine the 1 cup of chocolate chips. Heat in 30-second intervals, stirring until melted and smooth.
- Step 6: Pour the Chocolate Over the Bars - Pour the melted chocolate over the peanut butter layer and spread it evenly using a spatula.
- Step 7: Chill the Bars - Refrigerate the bars for at least 2 hours or until set.
- Step 8: Cut and Serve - Once set, remove the bars from the refrigerator and cut into squares or rectangles. Serve chilled.
Equipment
- 9x13 inch Baking Pan
- Mixing bowls
- Spatula
- Microwave-safe Bowl
- Measuring cups and spoons
Notes
- For a gluten-free version, use gluten-free Oreos and graham cracker crumbs.
- Store in an airtight container in the fridge for up to one week.
- These bars can be frozen for up to three months; just thaw overnight in the refrigerator.
