Cake Mix Cookie Bars

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These Cake Mix Cookie Bars are our favorite easy dessert. With just one bowl and no fancy equipment, you can have these bars ready to serve for dessert in no time.

If you are someone who is intimidated by baking, let us introduce you to these Cake Mix Cookie Bars. They are our no-fuss dessert that everyone always loves (they can’t believe they’re made from cake mix!).

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To make them gourmet and taste like they were made from scratch, we love to add our favorite mix-ins like chocolate chips, sprinkles, and coconut. If you love an easy dessert recipe, be sure to also try our Strawberry Cheesecake Dump Cake and Gooey Butter Cookies.

Table of Contents

Why You’ll Love this Recipe

6-ingredient cookie bar recipe. This is the easiest dessert recipe to serve a crowd and to also mix together in less than 10 minutes.
Great for beginner bakers and kids. if you are just learning to bake, these are truly foolproof and so delicious.
Easy to customize with your favorite cookie ingredients. Add chocolate chips, nuts, coconut, sprinkles, the options are endless!

Ingredients

Scroll Down to the Bottom of this Post for Ingredient Amounts Listed in the Printable Recipe Card

Yellow cake mix: The base to these easy cookie bars.
Large egg: Binds everything together.
Milk: Moistens the cake batter just right.
Neutral oil (canola, vegetable, or avocado oil): Keeps the cookie bars moist.
Milk chocolate or white chocolate chips: Choose whichever chocolate you prefer, we love both!
Sprinkles: A fun twist of color for these cake mix cookie bars.

The ingredients to make cake mix cookie bars.

Tools You’ll Need

How to Make Cake Mix Cookie Bars

Preheat the oven to 350°F. Grease or line with parchment paper a 15x10x1-inch baking pan.
In a large bowl, mix together the cake mix, egg, milk, and oil until thick.

Mixing the batter in a bowl for cake mix cookie bars.

Stir in sprinkles and half of the chocolate.

Spread the batter evenly into the prepared pan. Bake for 30-35 minutes until a toothpick inserted in the center comes out with a few moist crumbs. Cool completely in the pan.
Melt the remaining chocolate in a microwave safe bowl or in a double boiler. Drizzle over the bars, and immediately add the remaining sprinkles on top. Allow the bars to rest for 2 hours, or until the chocolate has set completely. Cut into bars and serve.

Expert Tips

Choose another flavor of cake mix to change up the cookie bars. We use vanilla for our recipe, but you could also use chocolate, lemon, or red velvet cake mix!
Add your favorite chocolate chips. We love milk chocolate or white chocolate, but semisweet, dark chocolate, peanut butter, and cinnamon are also delicious.
Customize the sprinkles to the holiday. This is an easy way we love to theme these cookie bars to any occasion!
To know when the cookie bars have finished baking, insert a toothpick into the center of the bars. If there’s only dry crumbs, then the bars are ready to cool.

Storage

If you have any leftover cookie bars, store them in an airtight container at room temperature for up to 4 days. You can also freeze the bars for up to 2 months, then thaw at room temperature until soft.

Frequently Asked Questions

Can I make cake mix cookie bars in advance?

Yes, they are great made up to a day in advance.

What other mix-ins are good in cookie bars made from cake mix?

Be sure to try adding in nuts, sprinkles, chocolate chips, and chocolate candies like M&Ms.

Can I use another flavor of cake mix for cookie bars?

Yes, try lemon, chocolate, or red velvet for another flavor variation.

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