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+ servings
a stack of chocolate chip cookie bar squares made from cake mix next to a jar of milk with a cake stand filled with more bars behind it.
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4 from 8 votes

Cake Mix Cookie Bars

These sweet and chewy cake mix cookie bars are loaded with a variety of chocolate chips. They are super simple to make and totally delicious!
Prep Time5 mins
Cook Time40 mins
Total Time45 mins
Course: Dessert
Cuisine: American
Keyword: 3 ingredients
Servings: 16
Calories: 300kcal


  • 1/3 cup oil
  • 2 eggs
  • 1 box yellow cake mix
  • 3/4 cup semi-sweet chocolate chips
  • 1/2 cup milk chocolate chips
  • 1/2 cup white chocolate chips


  • Preheat the oven to 350 degrees. In a medium bowl, stir together the oil and eggs until well blended. Add the cake mix and stir until the dough comes together. Add all of the chocolate chips, and stir until they are blended in.
  • Line a 9 x 9 baking dish with parchment or foil. Spread the batter in an even layer in the baking dish (it will be thick).
  • Bake 35-40 minutes, or until a toothpick inserted two inches from the side comes out clean. Let cool completely before slicing and serving.


Calories: 300kcal