Cake Mix Cookie Bars

Introduction

These Cake Mix Cookie Bars are the ultimate shortcut dessert, transforming a simple box mix into chewy, rich bars with minimal effort. You get the perfect texture of a cookie in a convenient bar form, making them ideal for potlucks, lunchboxes, or a sudden sweet craving. The recipe is incredibly forgiving and requires just one bowl.

Prep & Cook Time

Prep Time: 5 minutes

Cook Time: 20 minutes

Total Time: 25 minutes

Servings: 20 bars

Ingredients

• 2/3 cup vegetable oil
• 1/3 cup water
• 1 large egg
• 15.25 ounce yellow cake mix
• 1 cup semi sweet chocolate chips (reserve 2 Tablespoons for topping)

Instructions

1. Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking pan or line it with parchment paper.
2. In a large mixing bowl, combine the vegetable oil, water, and egg. Whisk together until smooth.
3. Add the entire box of yellow cake mix to the bowl. Stir with a wooden spoon or spatula until just combined and no dry streaks remain. The batter will be thick.
4. Fold in the semi-sweet chocolate chips, reserving 2 Tablespoons for later.
5. Transfer the thick batter to your prepared pan. Using your hands or a spatula, press the dough evenly into the pan.
6. Sprinkle the reserved 2 Tablespoons of chocolate chips evenly over the top of the dough.
7. Allow the bars to cool completely in the pan on a wire rack before slicing into squares.

Variations

• Flavor Swap: Use a different cake mix variety like chocolate, vanilla, or funfetti for a completely different base flavor.
• Add Mix-Ins: Instead of (or in addition to) chocolate chips, try folding in chopped nuts, sprinkles, white chocolate chips, or butterscotch morsels.
• Frosted Bars: Once completely cool, spread a thin layer of your favorite frosting over the top for an extra decadent treat.
• Cookie Cups: Instead of pressing into a bar pan, scoop rounded tablespoons of dough onto a parchment-lined baking sheet for classic cake mix cookies.

Tips for Success

1. For perfect, clean cuts, make sure the bars are completely cooled. You can even chill them in the refrigerator for 30 minutes before slicing.
2. Press the dough firmly and evenly into the pan to ensure the bars bake uniformly without thin or thick spots.
3. Check for doneness a minute or two before the minimum bake time, as oven temperatures can vary. The bars will continue to set as they cool.

Storage & Reheating

Store cooled bars in an airtight container at room temperature for up to 5 days or in the refrigerator for up to a week. For a warm, gooey treat, reheat individual bars in the microwave for 10-15 seconds.

FAQ

1. Can I use a different oil?

Yes, you can substitute the vegetable oil with an equal amount of canola oil or melted (and cooled) coconut oil.

2. My batter seems very thick and oily, is that right?

Yes, this is normal. The batter is more of a stiff, oily dough than a typical cake batter. It will press into the pan easily.

3. Can I make these without eggs?

Yes, for an egg-free version, you can try substituting the egg with 1/4 cup of unsweetened applesauce. The texture may be slightly more cake-like.

4. Why did my bars turn out cakey instead of chewy?

Overmixing or adding extra liquid can lead to a cakey texture. Ensure you measure accurately and mix just until combined. Also, be careful not to overbake.

5. Can I double this recipe?

This recipe is designed for a 9×13 pan. Doubling it is not recommended as it will not bake evenly. For a larger batch, make two separate pans.

6. Can I use a different pan size?

A 9×13 inch pan is recommended. A smaller pan will yield thicker bars that require longer baking, while a larger pan will make thinner bars that bake faster. Adjust time accordingly.