Cake Mix Cookie Bars
May 04, 2020, Updated Feb 13, 2024
This post may contain affiliate links. Please read our disclosure policy.
Cake mix cookie bars are the ultimate semi-homemade dessert. These lazy cookie bars are filled with colorful chocolate candy and are always a winner with the kids.
A box of cake mix can be used in so many different ways. I love using cake mixes for cookies like these lemon cookies and strawberry cookies. You can also use the mixes for brownies, waffles, and banana bread.
![stacked cookie bars](https://www.foodlovinfamily.com/wp-content/uploads/2020/05/stacked-cookie-bars-885x1024.jpg)
Have you ever been invited to a gathering last minute and need to make something quick to bring? Or you might just be craving a sweet treat? These cookie bars with cake mix are just what you need!
All you need are 4 ingredients and 30 minutes to whip up these easy dessert recipe that everyone will love.
Why this recipe works
- Fast – Using a boxed cake mix makes this recipe quick to whip up.
- Simple – Only 4 simple ingredients needed and a perfect quick dessert.
- Delicious – These cake mix bars have a wonderful chewy texture and are filled with colorful chocolate candies.
![bag of m&m's, eggs, butter, cake mix](https://www.foodlovinfamily.com/wp-content/uploads/2020/05/cookie-ingredients-805x1024.jpg)
Ingredients needed
- Yellow cake mix – This is the base of the bars.
- Butter – Unsalted butter is needed.
- Eggs – Two eggs are used for this recipe.
- Candy – M&M’s add a fun pop of color to these dessert bars.
How to make cookie bars with cake mix
Scroll to the bottom for full printable recipe, ingredients and video.
- Mix: Put the cake mix, melted butter, and eggs into a large bowl. Mix until combined
- Stir: Stir the candy into the batter mixture.
- Spread: Spread the cookie dough batter evenly in a 9 x 13 pan lined with parchment paper or foil. The batter is very thick so use a rubber spatula or even your hands to get the batter pressed down and spread.
- Bake: Bake the cookie bars for 20-25 minutes or until the top starts to turn golden brown.
- Cool: Make sure to let the bars cool before cutting.
![candy in a bowl with batter](https://www.foodlovinfamily.com/wp-content/uploads/2020/05/candy-and-batter-881x1024.jpg)
How to store
Store: These cake mix cookie bars will stay good at room temperature in and airtight container for about 1 week.
Freeze: Cut the bars into squares. Wrap in plastic wrap and then place in a freezer safe bag. They will last for about 3 months. Thaw in the refrigerator overnight.
Variations
The great thing about these cookie bars is that you can use a variety of different candy. Here are a few options:
- Chocolate chips
- White chocolate chips
- Butterscotch chips
- Peanut butter chips
- Chopped Heath Bar
- Reeces Pieces
- Butterfinger
Can I use a different cake mix?
Yes, you can use white cake mix, chocolate cake mix, strawberry cake mix, even red velvet cake mix.
![Cake Mix Cookie Bars on a plate](https://www.foodlovinfamily.com/wp-content/uploads/2020/05/cake-mix-cookie-bars-781x1024.jpg)
Tips for making cake mix bars
- If you don’t want to use butter, you can substitute vegetable oil.
- Try not to over bake the bars.
More delicious cookie recipes
- Chocolate Oreo Chunk Cookies – Chocolate cookies with chunks of Oreo cookies.
- Banana Oatmeal Cookies – Chewy cookies that taste just like banana bread.
- Chocolate Chip Squares – A classic recipe.
- Oatmeal Fudge Bars – Oatmeal cookie bars layered with a delicious fudge middle.
- Blonde Brownies – Chewy blondies with white chocolate chips.
Let me know if you make this easy recipe.
![cookie bars on a plate](https://www.foodlovinfamily.com/wp-content/uploads/2020/05/cake-mix-cookie-bars-square-300x300.jpg)
Cake Mix Cookie Bars
Ingredients
- 1 (15.25 oz) box yellow cake mix
- 2 eggs
- 1/2 cup butter, melted
- 2 cups M&M's
Instructions
- Preheat oven to 350 degrees F. Line a 9 x 13 inch baking pan with parchment paper and spray with non-stick spray.
- Pour cake mix, eggs and butter in a large bowl. Stir until combined.
- Stir in M&M's.
- Spread batter in prepared baking pan. Use a spatula or hands to press down.
- Bake for 20-25 minutes. The edges should start to turn golden brown. Cool before cutting.
Video
![YouTube video](https://i.ytimg.com/vi/HPGtd7RWqik/hqdefault.jpg)
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
These brownies were perfect; almost as good as using regular ingredients but faster and less time gathering ingredients: raising four boys leaves me little time to spend looking for ingredients. However, I always have a box of cake mix. Now two of my boys want to try different cake mixes and experiment. I call that a double success recipe. Thank you.
I’m so happy you are enjoying them! With four boys I am sure you are so busy!! Thank you for the comment!
I followed the recipe to a T. Perfect conditions, turned out as just cake. Fluffy. Airy. Not dense or chewy like anything resembling a cookie. Tasty, but not at all what I was looking for. Would’ve just made regular cake tbh.