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Ultimate 3-Ingredient Chewy Cake Mix Cookie Bars

Two rich, thick cake mix cookie bars stacked on a white plate, featuring melted chocolate chips.
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Make these incredibly easy and soft Cake Mix Cookie Bars using only three basic ingredients. They bake up chewy and are perfect for a quick dessert or bake sale favorite.

Ingredients

Scale
  • 1 box (15.25 oz) Yellow Cake Mix
  • 2 large Eggs
  • 1/2 cup Unsalted Butter, melted
  • Optional Mix-in 1 (for Chocolate Chip version): 1 cup Semi-Sweet Chocolate Chips
  • Optional Mix-in 2 (for Peanut Butter Swirl version): 1/2 cup Creamy Peanut Butter

Instructions

  1. Preheat your oven to 350°F (175°C). Line a 9×13 inch baking pan with parchment paper, leaving an overhang for easy removal.
  2. In a large bowl, combine the entire box of cake mix, the two eggs, and the melted butter. Mix with a spoon or spatula until just combined into a thick dough. Do not overmix.
  3. For the Classic Chocolate Chip version: Fold in 1 cup of chocolate chips now. Press the dough evenly into the prepared baking pan.
  4. For the Peanut Butter Swirl version: Press half of the plain dough into the bottom of the pan. In the remaining dough, mix in the 1/2 cup of peanut butter. Drop spoonfuls of the peanut butter dough over the base layer and gently swirl with a knife.
  5. Bake for 18 to 22 minutes, or until the edges are lightly golden brown and the center is set. The bars will look slightly underdone in the middle, which helps them stay chewy.
  6. Let the bars cool completely in the pan on a wire rack before lifting them out using the parchment paper overhang. Cut into squares.

Notes

  • For a richer, softer bar, substitute the eggs with 1/2 cup of milk and 1/4 cup of oil, though this makes it a 4-ingredient recipe.
  • If you want a thicker bar, use an 8×8 inch pan instead of 9×13 inches, but increase the baking time by 5 to 8 minutes.
  • These bars freeze well. Cut them into individual portions before freezing for easy grab-and-go treats.

Nutrition

Find it online: https://cookincorner.com/cake-mix-cookie-bars/