Cake Mix Cookie Bars
With a box of cake mix and just two other ingredients, you can make these easy Cake Mix Cookie Bars! The one-bowl recipe can be prepped in just minutes and results in the most perfectly moist and chewy cookie bars in any flavor you desire.
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Makes: 24 cookie bars
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Ingredients
- 11 Tbsp (1 stick + 3 Tbsp) melted unsalted butter slightly cooled
- 1 large egg
- 1 15.25 oz. box cake mix (any flavor you want), see notes for 13.25 oz. box
- ½ cup chocolate chips or the add-ins of your choice optional
Instructions
- Preheat oven to 350 degrees and grease a 9x13" baking pan with cooking spray or butter or line it with parchment paper.
- In a large bowl, mix together melted butter and egg until well combined.
- Add cake mix and mix together until combined. The mixture will be thick and doughy.
- Gently fold in chocolate chips if using.
- Transfer the batter to prepared baking pan. Use a spatula or the back of a wooden spoon to evenly spread the batter in the pan. Since dough is thick, you may need to press it into the pan to even it out.
- Bake for 18-21 minutes, until the edges are just turning golden. The center of the bars should still be slightly soft.
- Let cookie bars cool in pan on a wire rack before removing from pan and slicing into squares.
Notes
- If your box of cake mix is 13.25 oz. use 9 tablespoon of butter instead. Bars will likely need slightly less time to bake.
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