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Chocolate Chip Cookie Brownie Bars

These are a scrumptious layered dessert bar that features a homemade chocolate chip cookie on the bottom, topped with a brownie layer. Finish off the dessert with a mouth-watering cookie dough frosting on top.
Prep Time30 mins
Cook Time50 mins
Total Time1 hr 20 mins
Course: Dessert
Cuisine: American
Keyword: brookie, cookie bar recipes, cookie brownie mix
Servings: 15
Calories: 990kcal
Author: Jill

Ingredients

Ingredients

    Chocolate Chip Cookie Base :

    • 3/4 C unsalted sweet cream butter softened
    • 1 C light brown sugar
    • 1/2 C sugar
    • 2 large eggs
    • 2 tsp pure vanilla extract
    • 1 tsp baking soda
    • 1/2 tsp kosher salt
    • 2 1/4 C flour
    • 2 C semi-sweet chocolate chips

    Chocolate Brownie Layer:

    • 3/4 C unsalted sweet cream butter
    • 1 C semi-sweet chocolate chips
    • 3 large eggs
    • 1 1/2 C sugar
    • 1/2 tsp kosher salt
    • 1 tsp pure vanilla extract
    • 1/2 C Hershey cocoa powder
    • 2/3 C flour

    Cookie Dough Frosting Layer:

    • 1 C unsalted sweet cream butter softened
    • 1 C light brown sugar
    • 1/2 C sugar
    • 1/4 C Whole milk
    • 2 tsp Pure vanilla extract
    • 1/2 tsp kosher salt
    • 2 C flour
    • 1 1/2 C semi-sweet chocolate chips

    Instructions

    Directions

    • Preheat oven to 350 degrees and line parchment paper into the 9x13 baking dish
    • Using a standing mixer, beat the butter, sugar and brown sugar together until light and fluffy
    • Beat in eggs, one at a time until combined
    • Mix in the vanilla, baking soda, salt until combined
    • Gradually mix in the flour ingredients until combined
    • Fold in chocolate chips
    • Spread the dough into the pan
    • Bake the dough into the oven for 25 minutes or until the edges are lightly golden brown and the center is almost set
    • Allow to cool while you make the brownie batter

    Brownie Batter directions:

    • Using a medium pot on low-medium heat, melt the butter
    • Whisk in the chocolate chips until they are smooth
    • Remove pot from heat and set aside
    • Using a medium bowl, whisk together the eggs, sugar, salt and vanilla extract
    • Gradually whisk the egg mixture into the chocolate mixture.
    • Gradually whisk in the cocoa powder and flour until combined and smooth
    • Spread the brownie batter onto the top layer of the cookie layer
    • Bake in the oven for 25-30 minutes or until a toothpick comes out clean in the middle
    • Place on the counter to cool completely

    Chocolate chip cookie dough frosting directions:

    • Using a standing mixer, beat together the butter, sugar and brown sugar until combined and smooth
    • Mix in the milk, vanilla and salt until combined
    • Fold in the chocolate chips
    • Spread the frosting onto the top of the brownie layer
    • Place into the fridge overnight to allow the frosting to harden
    • Cut into bars and enjoy!

    Notes

    How To Heat Treat Flour For Cookie Dough Layer:
    • Preheat oven to 350F degrees. Line a cookie sheet with parchment paper and spread flour in an even layer.
    • Bake for 5-7 minutes, use a thermometer to check that the flour reached 160F (72C) immediately after removing from oven.
    • Once flour has reached 160F (72C) allow it to cool and run it through a sifter to break up any clumps that may have formed while baking.
    PRO-TIP: I highly recommend heat treating your flour before mixing it into the recipe. You can do this by microwaving the flour for 1 minute and 15 seconds (stopping and mixing it after 15-second intervals). This is good for heating the flour to prevent any bacteria.
     

    Nutrition

    Calories: 990kcal | Carbohydrates: 124g | Protein: 10g | Fat: 52g | Saturated Fat: 32g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 14g | Trans Fat: 1g | Cholesterol: 85mg | Sodium: 343mg | Potassium: 467mg | Fiber: 6g | Sugar: 82g | Vitamin A: 981IU | Calcium: 83mg | Iron: 6mg