Cake Mix Cookie Bars
on May 07, 2021, Updated Feb 11, 2025
Need a quick and easy dessert? These Cake Mix Cookie Bars are made with just 4 ingredients. The flavor possibilities are endless!
These cake mix cookie bars have fast become top of my easy dessert list. With just 4 ingredients and a few minutes you can make homemade cookie bars in a fraction of the time.
Have a bake sale coming up and need an easy dessert recipe? Or need a last minute dessert for the holidays? This is the PERFECT recipe!
You can use any flavor of cake mix and add in different mix ins. There are so many flavor possibilities that you could make with this recipe as a base.
I have made them for birthday parties, Christmas, dinner gatherings, graduations, and more. Basically any time I am asked to bring a dessert!
You can find the full recipe and instructions at the bottom of this post, but here’s what you’ll need to make it.
Ingredients You’ll Need
- yellow cake mix: or any flavor cake mix
- eggs
- oil: any neutral oil like olive oil or vegetable oil
- chocolate chips
How to make cake mix cookie bars
Step 1: Preheat your oven to 350 degrees. Beat the eggs in a small bowl. Add the cake mix and oil to the beaten eggs and mix well to combine.
Step 2: Beat in the chocolate chips (the batter will be very thick).
Step 3: Grease a 9 X 13 baking dish with cooking spray. Spread the cookie bar batter evenly in the dish (this will take several minutes to spread evenly).
Recipe Tip
Use wet or greased hands or a rubber spatula to spread the batter into the dish. The batter is very thick and this will make it a little easier to spread!
Step 4: Bake the cookie bars at 350 degrees for 20 – 25 minutes, or until toothpick inserted comes out clean. Once cooled, cut the cookie bars into squares.
Serve warm with ice cream for an extra delicious treat!
If you’ve never made these before, you will be surprised at just how good they are!
The texture of these bars is the thickness of a brownie with the taste of a chocolate chip cookie. They’re just so fun to eat and really satisfying and thick and chocolatey.
Storing
Leftover cake mix bars can be stored in an airtight container at room temperature for 3-4 days, if they last that long!
More Cake Mix Recipes You’ll Love
Cake Mix Cookie Bars
Ingredients
- 15 ounce box of yellow cake mix
- 2 eggs, beaten
- 1/3 cup olive oil, or vegetable oil
- 12 oz chocolate chips
Instructions
- Preheat the oven to 350 degrees.
- Beat the eggs in a small bowl.
- Add the cake mix and olive oil to the beaten eggs and mix well.
- Beat in the chocolate chips (the batter will be very thick).
- Grease a 9 X 13 baking dish. (see notes for the thickness)
- Spread the batter evenly in the dish. This will take several minutes to spread evenly as it is very thick and sticky.
- Bake the cookie bars at 350 degrees for 20 – 25 minutes, or until a toothpick inserted comes out clean.
- Once cooled, store leftover cookie bars in an airtight container.
Video
Notes
- The batter will be thick and hard to spread (this is normal). I found that using a rubber spatula and a spoon made it easier to spread into the pan. It may take a couple minutes, but it’s so worth it!
- The thickness of the cookie bars will depend on how large of a baking dish you use.
Nutrition
I love the recipe. So far, I’ve used banana cake mix and added mashed banana with 2 Tbs oil and toffee bit. I’ve also used carrot cake mix and added slivered almonds and walnuts. With both I made a cream cheese drizzle and topped that with more chopped nuts. Yum. Thinking I’ll use strawberry cake mix with white chocolate chips and top it off with dehydrated strawberry crumbles.
Just a quick note, in the instructions for this recipe I think you mistakenly wrote ‘olive oil’ in the directions and I imagine you use vegetable or canola? I used vegetable oil and it worked out perfectly! Absolutely delicious recipe!
It was not a mistake as it can be used interchangeably along with vegetable or canola oil. Any of them work the same, or melted butter!
@Joy Shull, thanks for the tip, never used olive oil in baking before – I am afraid to start now! Haha
@Kimberly, Olive Oil pairs beautifully with chocolate desserts vs. other oils! Try it, you’ll love it!
@Linda, I agree. But I have used it for years in baking and cooking, starting with the light oil,. No one ever noticed.
I am these bars as a cookie cake and it turned out perfect I used 2 boxes of cake mix and separated to put chocolate chips in a third and sprinkles and caramel chips in the other half as my granddaughter is allergic to chocolate I used royal icing to decorate the top and right on it. I am excited how it turned out! thank you for the ideas and help
I added coconut flakes to the mix. Yummy. Thanks for the easy recipe. I had to make them again the next day because the first batch was gone.
Can I freeze baked cookies?
@nancy, yes you can! My mantra is ” out of sight, out of mind,” with just two of us in this household. When you take one or two out of the freezer bag, just microwave for a few seconds. They will be almost like fresh baked.
This was sooo easy and very delicious! I used 1/3 cup of butter. I could have cooked it a few minutes longer, but still great
These are so good. My husband loved them with a cup of tea. I will definitely make again.
Suggestions on What I can use to replace the eggs please? Will flax meal work as an egg replacement?
@Aneeta, if you are not allergic to pumpkin, I found that canned pumpkin can replace eggs, I used this substitute one day when I wanted to make pancakes but the eggs have expired. I just read the amount to use on top of the can.
Have to say amazing!
I didn’t have yellow cake mix on hand but I did have white cake mix!
I mixed in white chocolate, dried cranberries and an extra tbsp of melted butter. Tasted like my favorite sugar cookies but better!
I doubled the receipe should I doubl e the baking time?
Did you use a larger pan or two pans? I can’t answer that without knowing. You should cook it until a toothpick inserted comes out clean.
@Joy Shull, I used a 13×9 pan. I baked it right with the toothpick but the edges got crisp. Might be my oven,still very good.
I’m glad you enjoyed them!