Transform your baking – without breaking a sweat – with this mouthwatering dessert bar cookie recipe using a box of cake mix! With a rich, buttery flavor and soft, chewy texture, these cake mix cookie bars pack a delightful melt-in-your-mouth taste. Plus, this recipe is endlessly customizable – experiment with different box mix flavors and baking chips to create YOUR perfect treat. Best of all, you’ll need just 6 ingredients to make ’em!

“I used M&M’s and chocolate chunks to make monster cookie bars and they were SO GOOD! I will be making these again!”
– DAN

Update: This recipe was originally published in April 2022. I made updates to the article below to include more information about making cookie bars from a box of cake mix at home. 
Hi, friends! I hope you are a lover of all things cookie-related, because today I’m sharing the recipe for the best cake mix cookie bars in all the land. These yummy white cake mix bars feature all the same goodness found in traditional chocolate chip cookies, just super-sized into bar form! If you are planning a celebration or simply want to have sweet treats on hand for when the sugar craving strikes, these cake bars fit the bill.

If you have boxes of cake mixes sitting in your pantry (like me!), this is the perfect time to take them out and make a delicious cookie treat! So, grab your apron and let’s sta...