These peanut butter cookie bars are the perfect addition to your upcoming parties! ! My Oreo Peanut Butter Cookie Bars are packed with Oreo Cookies and chocolate chips making them the perfect cookie bars for any occasion.
If you love cookie bar recipes like we do, try my Malted Chocolate Chip Cookie Bars too!
Peanut Butter Cookie Bars
These peanut butter cookie bars packed with mini Oreo Cookies and chocolate chips are so much fun and will certainly satisfy any sweet tooth. They are great to bring to a party, package up for friends or even for serving as an after school treat. Be sure to serve with a tall glass of milk and prepare your taste buds for a big party 🙂
Why You’ll Love This Recipe
- Great Flavor Combination. These cookie bars are packed with Oreo Cookies and peanut butter which make for a delicious cookie bar.
- Easy To Make. With my step by step instructions and photos, you’ll have no trouble making this recipe.
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What You’ll Need
Here are the ingredients you’ll need to make cookie bars at home. See the recipe card located at the bottom of the page for full details and instructions.
- Butter– For most of my recipes I use salted butter. Unsalted works too.
- Granulated Sugar– This fine white sugar adds sweetness to the cookie bars.
- Light Brown Sugar– Light brown sugar also adds sweetness and richness to the bars.
- Creamy Peanut Butter– Use your favorite brand of creamy peanut butter.
- Large Egg– For consistency, I use large eggs in my cooking and baking.
- Pure Vanilla Extract– Use pure vanilla extract for best tasting results.
- All-Purpose Flour– Flour is the main dry ingredient in the cookies.
- Baking Soda– Baking soda helps the cookies rise during baking.
- Kosher Salt– Kosher salt is a course salt commonly used in cooking and baking. I prefer it over table salt.
- Chocolate Chips- Milk or semi sweet is generally what I use. White chips and butterscotch would be good substitutions too.
- Mini Oreos– Mini Oreos are usually sold in a bag in the cookie isle. You can crush your own regular size Oreo cookies if needed too.
How To Make Peanut Butter Cookie Bars
Preheat Oven and Prepare Baking Dish. Preheat oven to 350 degrees F. and line an 8×8 inch baking dish with foil that’s sprayed with cooking spray.
Cream Butter and Sugars. Place butter and sugars into a large bowl, cream until well combined.
Peanut Butter. Add peanut butter mixing to combine.
Egg and Vanilla. Stir in egg and vanilla mixing well.
Dry Ingredients. Add flour, baking soda and salt, mixing until dough forms.
Chocolate Chips and Oreos. Stir in chips and mini Oreo cookies stirring until just combined.
Transfer Dough To Baking Dish. Transfer dough to prepared baking dish, press dough evenly into pan.
Bake. Bake for 30-35 minutes or until golden brown and cooked through.
Cool Completely. Remove and let cool for 45 minutes before cutting into squares. Serve with milk and enjoy!
How To Serve
Serve cookie bars at any occasion where cookies or dessert is needed.
How To Store Leftovers
Store any leftovers in an airtight container at room temperature for up to 3 days.
Oreo Chocolate Chip Peanut Butter Bars
Equipment
- Oven
- 8 x 8 inch baking dish
- mixing bowl or stand mixer
- measuring cups
- measuring spoons
- mixing spoon
- knife to cut bars into squares
Ingredients
- 1 stick/8 tablespoons unsalted butter softened
- 1/2 cup granulated sugar
- 1/2 cup packed light brown sugar
- 1/2 cup creamy peanut butter
- 1 large egg
- 1/2 teaspoon pure vanilla extract
- 1 cup all purpose Gold Medal Flour
- 1/2 teaspoon baking soda
- 1/2 teaspoon kosher salt
- 1 cup chocolate chips
- 2 cups mini Oreos
Instructions
- Preheat oven to 350 degrees and line an 8×8 inch baking dish with foil that’s sprayed with cooking spray.
- Place butter and sugars into a large bowl, cream until well combined. Add peanut butter mixing to combine. Add egg and vanilla mixing well. Add flour, baking soda and salt, mixing until dough forms. Add chips and mini Oreo cookies stirring until just combined. Transfer dough to prepared baking dish, press dough evenly into pan.
- Bake for 30-35 minutes or until golden brown and cooked through. Remove and let cool for 45 minutes before cutting into squares. Serve with milk and enjoy!
Nutrition
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Welcome to my online kitchen! Picky Palate is where you’ll find family friendly recipes along with the best Disney eats, tips and copycat recipes! 
OMG! Divine! Despite reducing all the sugary stuff by half (white and brown sugars, chocolate chips and oreos) this was still decadent and delicious. Will definitely make again!
That cookie bar alone, can brighten a day!
Wow. These bars are literally making me speechless! Talk about ooey gooey chocolatey goodness! 🙂
I am super obsessed with Oreos, so this sounds and looks amazing! I wish the Oreo/peanut butter combination was more common because it’s soo good. I’ve loved it ever since I saw it on The Parent Trap when I was little and decided to try it. 🙂
these look really good, just wanted to let you know that I made your chocolate chip cookie dough cupcakes and they were divine! the kids love them, thanks for the idea!!
I AGREE ABOUT GUITTARD! They are the only chocolate chip I have used for the past 12 years. Pinning this recipe and hopefully make when the temps go down.
Ohhhh this is the perfect recipe for the Fantasy Football Widows party we’re having tonight while the guys do their draft! Also, I LOVE your recipe box plugin! That is such a fantastic idea.
Jenny, I love that you are never afraid to throw anything into a cookie, cake or bar!
You never cease to amaze with all these delicious, decadent desserts! These bars look absolutely heavenly.
Wow, those look sinfully delicious!
These sound freaking delicious!! YUM!
Totally making these tomorrow
I’m so in love with those mini Oreos, and this is the perfect recipe to use them in…you rock!