Peanut Butter Chocolate Chip Bars are full of chocolate chips and delicious creamy peanut butter. Using a cake mix to bake cookies is just another one of my favorite Cake Mix Hacks that I love to share with you! Let me show you how easy these are to make.

Everybody needs easy cookie bar recipes with few ingredients in their recipe box and this recipe for Peanut Butter Chocolate Chip Bars is just that…easy!
They’re the perfect dessert to make for your family when you need something sweet.
Peanut Butter Chocolate Chip Bars with Yellow Cake Mix
You never know when you need to make a dessert recipe at the last minute. When my son was in high school, I had to make a lot of desserts for football team dinners, not to mention the snack bar on game night.
Sometimes I didn’t get much notice for when a dessert was needed, which is why I love using a cake mix to create this recipe for Peanut Butter Chocolate Chip Bars. They’re ready fast and everyone loves them.

What you’re really doing is creating a cake mix hack by adding a few extra ingredients to a boxed cake mix. The end result is a totally different recipe than what’s featured on the front of the box.
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Ingredients
Exact measurements are listed below in the recipe card. Make sure you scroll down to print and save the recipe for later!
- Vanilla Cake Mix
- Eggs
- Peanut Butter
- Oil
- Chocolate Chips

Directions
I find it easier to use a hand-held mixer to combine all the ingredients together, but you can definitely do this by hand with just a wooden spoon. Once the ingredients are combined, add them to the bottom of a 9X13 baking dish that’s been sprayed with non-stick cooking spray.
Use your fingers or the back of a spoon to help smooth out the cookie dough into the greased pan.

Baking Instructions
Bake in a preheated 350 degree oven for 15 to 17 minutes or until the bars are golden brown.

Tip: After the cookies have cooled, place a cutting board on top of the baking dish and then invert to flip the baked bars out! I find them much easier to cut on top of a cutting board than in the baking dish.

Ready for More Easy Cake Mix Dessert Recipes?
- Chocolate Sugar Cookies
- Red Velvet Sandwich Cookies
- Four Different Cake Mix Cookie Recipes – with a video to show you how easy it is to make cookies when they start out with a cake mix.
- Chocolate Chunk Muffins – who says you can’t have chocolate for breakfast?
- Peach Crunch Cake – used a cake mix as crumb topping!

Peanut Butter Chocolate Chip Bars
Ingredients
- 1 box yellow cake mix
- 2 eggs
- 1/3 cup creamy peanut butter
- 1 cup chocolate chips
- 1/3 cup oil
Instructions
- Combine all the above ingredients into the bowl of a stand-up mixer and combine well. You can also combine all the ingredients using a wooden spoon.
- Press out the mixture into a 9X13 baking dish that's been sprayed with non-stick cooking spray.
- You will have to use your fingers or the back of a spoon to spread everything out evenly as the dough will be sticky.
- Bake in a 350 degree oven for 15 to 17 minutes or until the bars are golden brown.
- Let cool slightly before removing them from the baking dish to slice into bars.
Notes
Easy Tip:
I find it easier to slice by removing them from the baking dish to slice into bars on top of a cutting board.
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Nutrition Information:
Yield: 24 Serving Size: 1Amount Per Serving: Calories: 171Total Fat: 8gSaturated Fat: 2gTrans Fat: 0gUnsaturated Fat: 5gCholesterol: 16mgSodium: 183mgCarbohydrates: 23gFiber: 1gSugar: 14gProtein: 2g
The nutrition information is calculated automatically. I cannot guarantee its accuracy. If this data is important to you, please verify with your trusted nutrition calculator.
This recipe has been updated since it first appeared in 2012 with new photos and a new printable recipe card that includes nutritional information. I hope you enjoy the updates as much as I enjoyed working on them!
I made these bars with a spice cake and maple chips it’s wonderful
Am going to bake this evening, but all I have is p/b cookie mix can I use. That instead of cake mix, if I use smaller baking pan??
I’m not sure how that would work Mary! I’ve only used cake mixes for this recipe, not a cookie mix. Thank you for visiting.
Congratulations on the feature at Classy Flamingos.
Thank you! Thanks for visiting!
I tried these yesterday, added
1/3 cup.oil 2 eggs and 1 yello cake mix as recipe calls for and omg I never saw anything so dry to mix.Something is not right with the recipe. I had to add more oil and some water.
Hi Paula, I sent you a personal email as well. You don’t say that you added the peanut butter? That could be the problem. Let me know!
You’ve been PINKED! Your post was a hit on the Classy Flamingos Blog Party. Come by and pick up a badge this week at poinsettiadr.com You rock!
Thank you!!!
Yum! These look great and so easy!
Wow! Those look dangerously good! Thanks for sharing these at Foodie Friends Friday!! 🙂
These look amazingly delicious
I love PB with chocolate
Thoss look so good. Can't go wrong with peanut butter and chocolate!
Looks yummy! And I love a 'pan cookie' or bar like that because it doesn't involve all the shaping that cookies take.
How bad can that be? Easy AND chocolate!! Mmmm!
Easy and delish…great combo!
Now that looks delicious and sounds easy. I do love easy.
these are soo up my alley….quick, easy, chocolate, and peanut butter…yum! Hope you have a good day!
Those look REALLY good!!! and NO calories right??? LOL!
You pretty much had me at peanut butter but, wow! 🙂
Definitely will be trying these this weekend…thanks a bunch, Lois!
YUM!!!!!!!!!!!
YUMMM!!! Thank you for the recipe!
Can't go wrong with peanut butter and chocolate! I'll have to give this a try.