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Homemade party-worthy dessert: Chocolate chip cookie brownie layer bars

A soft and chewy chocolate chip cookie is topped with a rich and fudgy brownie in these decadent dessert bars.
A soft and chewy chocolate chip cookie is topped with a rich and fudgy brownie in these decadent dessert bars.
Photo by Michelle Hein

This decadent treat combines two classic favorites, chocolate chip cookies and brownies, into one amazing dessert bar. An extra soft and puffy chocolate chip cookie layer is topped with a rich, fudgy brownie layer … with even more chocolate chips sandwiched in the middle. While you could use prepared dough and a boxed brownie mix, this recipe is so easy that you’ll want to make it from scratch. Plus, these recipes are guaranteed to create the perfect texture and thickness for soft and chewy sweet bars. Because these make a big batch of dessert bars, these are perfect for parties and other big celebrations.

Brownie layer:

  • ½ cup unsalted butter, room temperature
  • 8 ounces coarsely chopped bittersweet baking chocolate
  • 1-1/4 cups sugar
  • 3 large eggs
  • 1 teaspoon vanilla extract
  • ¾ cup all-purpose flour
  • 1/2 teaspoon salt


  • Preheat oven to 350 degrees.
  • Heat the butter and baking chocolate in a medium saucepan on medium heat, stirring constantly until completely melted.
  • Remove from heat and let cool to room temperature. (Prepare chocolate chip layer during this time.)
  • After the melted chocolate is cooled, mix in sugar with a wooden spoon or spatula until combined.
  • Add in eggs one at a time, whisking until smooth.
  • Add vanilla and whisk.
  • Using the wooden spoon or spatula, gently fold in the flour and salt. Do not overmix.

Chocolate chip cookie layer:

  • ¾ cup unsalted butter, room temperature
  • ¾ cup brown sugar
  • ¼ cup sugar
  • 1 large egg
  • 2 teaspoons vanilla extract
  • 2 cups all-purpose flour
  • 2 teaspoons cornstarch
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • 1 cup chocolate chips, plus additional 1 cup chocolate chips on top


  • In a large bowl, cream the butter and sugar using an electric mixer.
  • Mix in eggs and vanilla.
  • Using the mixer on low speed, gradually add flour, cornstarch, baking soda and salt.
  • Stir in 1 cup chocolate chips.
  • Spread the chocolate chip cookie dough on the bottom of a greased 9” x 13” baking pan.
  • Top with additional chocolate chips and brownie batter.
  • Bake the bars for 30-35 minutes. Brownie tops will slightly crackle but they will remain soft. A toothpick inserted in the center should come out relatively clean.
  • Allow bars to cool for about an hour before cutting into squares.
  • Keep bars in an air-tight container for up to 1 week.
  • (Recipe inspiration found here.)

Like this recipe? Make sure you don't miss others like it. Subscribe to get instant updates, and you'll receive an e-mail every time I post a new article. Click the “subscribe” button in my bio section. You can also follow me on Facebook for more on food, recipes and restaurants in Philadelphia and Bucks County, PA. Like me at and follow me on Twitter @BucksCntyFoodEx.

To see all of the recipes I’ve shared and other food-related articles, visit my Bucks County Food Page. You’ll find other brownie and cookie recipes such as Thin Mint Chocolate Chip Cookie Pizza, Deep Dish Chocolate Chip Cookies, and Peanut Butter Cup Brownies. If you’d like to read my articles focused on Bucks County restaurants, you can also subscribe to my Bucks County Restaurant page.

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