Name: Easy Marbled Chocolate Chip Cookie Brownie Recipe
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Yield: 20
Cuisine: American
Ingredients: 1/2 cup butter (1 stick) - softened; 1/2 cup sugar - white granulated; 1/2 cup light brown sugar - packed; 1 1/2 teaspoon vanilla extract; 1 large egg - room temperature; 1 1/2 cups all purpose flour; 1/2 teaspoon baking soda; 1/2 teaspoon baking powder; 1/2 teaspoon salt; 1 cup semi-sweet chocolate chips; Non-stick cooking spray; For Brownie Batter (follow ingredients according to the brownie mix); 1/4 cup water; 1/3 cup vegetable oil; 1 large egg - room temperature; 1 box brownie mix - Supreme Triple Chunk (or mix of choice)

Jump to Recipe

If you’re a chocolate chip cookie and a brownie lover, this Easy Marbled Chocolate Chip Cookie Brownie Recipe is the perfect dessert!

This gooey, chocolatey treat will satisfy a sweet tooth any time of the year and it is so incredibly easy to make.

I mean, what’s not to love about a fudge brownie with chocolate chip cookie batter blended together? Yummy!

There is a round clear platter with brownies on it. There is caramel drizzled on some of the brownies. There are other brownies that have white salt flakes on them. There are a few chocolate chips laying in front of the platter. There is a gray cloth napkin laying next to the platter. Items are on a white marbled surface.

This chocolate chip cookie brownie bar is baked in a large baking pan and cut into squares or rectangles.

This decadent treat gets its name by combining “brownie” and “cookie,” resulting in “brookie”!

Domino’s Pizza offers a dessert similar to this that’s well-loved, but I have to say, the homemade version is the bomb!

There are four brownie squares with caramel drizzled on the top of them. Brownies are on a white marbled surface.

Simple Ingredients

There are seven white bowls of different sizes with ingredients in them. The largest bowl has white flour in it. There are three medium size bowls. One has chocolate chips in it, another has white sugar in it, the third one has brown sugar in it. There are three smaller bowls. One has 2 brown eggs in it, one has water in it and the third has vegetable oil in it. There are four very small clear glass ramekins. Three of them have white powder in them and the forth has vanilla extract in it. There is a stick of butter and a box of brownie mix. All the items are on a white marbled surface.

Ingredients For Brownie Layer

Box of brownie mix

Large egg

Vegetable oil

Water

Ingredients For Cookie Layer

Butter

White granulated sugar

Light brown sugar

Pure vanilla extract

Large egg

All purpose flour

Baking soda

Baking powder

Salt

Semi-sweet chocolate chips

Non-stick cooking spray

Helpful Equipment / Tools

Large bowl (Qty 2)
Medium bowl
Measuring cups
Measuring spoons
9 x 13 baking dish
Stand mixer or hand mixer
Whisk
Spatula
Aluminum foil
Wire rack
Oven mitts

Easy Marbled Cookie Brownie Recipe

There is large white mixing bowl with white flour in it. There is a wood handled whisk resting in the bowl. Bowl is on a white marbled surface.

For The Chocolate Chip Cookie Dough

Whisk the dry ingredients together.
Set aside.

There is a large white mixing bowl with white sugar, brown sugar, and chunks of butter in it. The bowl is on a white marbled surface.

In a large mixing bowl, cream butter and both sugars.

There is a large white mixing bowl with a light brown creamy mixture in it. There is a raw egg on top of the mixture. There are two beaters of a hand mixer above the bowl. Items are on a white marbled surface.

Add egg and vanilla.
Beat until fluffy.

There are 2 white mixing bowls next to each other. The bowl on the left has white flour in it. The bowl on the right has a creamed butter and sugar mixture in it. The bowls are on a white marbled surface.

With the mixer on low speed, gradually add the flour mixture to the wet ingredients.
Mix until soft dough forms.

There is a large white mixing bowl with cookie dough in it. There is a smaller white bowl next to it with chocolate chips in it. The bowls are on a white marbled surface.

There is a large white mixing bowl with chocolate chip cookie dough in it. There is a red rubber spatula resting in the bowl.

Fold in the chocolate chips.

There is a clear rectangle baking dish with seven scoops of chocolate chip cookie dough in it. The dish is on a white marbled surface.

Place large scoopfuls of cookie dough in the prepared pan.
Do not worry about forming cookie dough balls, it spreads out during baking.

There is a large white mixing bowl with brownie batter in it. Bowl is on a white marbled surface.

In a separate bowl, make the brownie mix according to the package.

There is a rectangular glass baking dish with chocolate chip cookie dough and brownie batter in it. The dish is on a white marbled surface.

Pour the brownie batter over the cookie dough and spread it around evenly.
Cover pan with aluminum foil. Bake for 15 minutes.

There is a rectangular glass baking dish with baked brownies in it. The dish is on a white marbled surface.

Remove foil and bake for an additional 15 to 20 minutes. (see Top Tips)
Cool pan on a wire rack before cutting. (see Top Tips)

Variations of Brownie Cookies

Brownie – Use whatever brownie batter you like the best. I usually get the BOGO at my local grocery store. I like the convenience of boxed brownie mix when I need the perfect sweet treat ASAP.

If you want to make the brownies from scratch, this is a delicious easy recipe from Handle The Heat.

Semi-sweet chocolate chips – you can use dark chocolate chips, milk chocolate chips, or even white chocolate chips.

Nuts – Mix in 1/2 cup of your favorite chopped nuts into the cookie dough or brownie batter. Walnuts or pecans are the most popular.

Caramel Sauce After the Marbled Cookie Brownie is done baking, drizzle some melted Caramel Bits over the top before cutting and serving.

Sea Salt Flakes – This is one of my favorite toppings for the Marbled Chocolate Chip Cookie Brownie. Sea Salt compliments the sweetness of the chocolate. Sprinkle a little over the brookies before serving. It’s insanely good!

There are five brownies with chocolate chips in them. There is salt flakes on the brownies. The brownies are on a white marbled surface.

Top Tips

To ensure the chocolate chip cookie brownies don’t crumble when cutting, make sure they are completely cool. Also, use a plastic knife for the cleanest cut lines.

For fudgy brownies, total bake time is around 30 minutes. For a crispy brownie, total time is 40 minutes.

How To Store

Any leftover brownies can stay on the counter top covered with plastic wrap or in an airtight container for a couple of days or in the fridge for about a week.

Frequently Asked Questions

Can You Freeze Marbled Chocolate Chip Cookie Brownies?

Yes, you can. The brownies can be stored in the freezer for up to 3 months in an airtight container.

How Do You Reheat Brownies?

Pre-heat your oven to 350 degrees. Place the brownies on a baking sheet or pan and warm them in the oven for about 5 minutes or until heated to your liking.

There is a wire cooling rack with square pieces of brownies on it. The rack is on a white and black terrazzo surface.

If you love this recipe, you have to try these delicious sweets!

Mini Pecan Raisin Tarts

Classic Moon Pies

Deep Dish Chocolate Chip Cookie With Caramel – super easy skillet cookie recipe!

Easy Raspberry Shortbread Thumbprint Cookies – Kids love to make these!

White Chocolate Chocolate Chip Cheesecake With Raspberry Topping

Old Fashioned Sand Tarts Cookie Recipe

Easy 5 Ingredient Delicious Meltaway Cookies – A family favorite!

Crispy Old-Fashioned Molasses Cookies – My Nana’s very old family recipe, delicious!

Yield: 20 pieces

Easy Marbled Chocolate Chip Cookie Brownie Recipe

If you're a chocolate chip cookie and a brownie lover, this marbled cookie brownie bar is the perfect dessert!

This gooey, chocolatey treat will satisfy a sweet tooth any time of the year and it is so incredibly easy to make.

Prep Time 20 minutes

Cook Time 30 minutes

Total Time 50 minutes

Ingredients

1/2 cup butter (1 stick) - softened
1/2 cup sugar - white granulated
1/2 cup light brown sugar - packed
1 1/2 teaspoon vanilla extract
1 large egg - room temperature
1 1/2 cups all purpose flour
1/2 teaspoon baking soda
1/2 teaspoon baking powder
1/2 teaspoon salt
1 cup semi-sweet chocolate chips
Non-stick cooking spray
For Brownie Batter (follow ingredients according to the brownie mix)
1/4 cup water
1/3 cup vegetable oil
1 large egg - room temperature
1 box brownie mix - Supreme Triple Chunk (or mix of choice)

Instructions

Preheat oven to 350 degrees.
Lightly spray baking dish.
In a medium bowl, whisk the flour, baking powder, baking soda, and salt. Set aside.
In a large mixing bowl, cream butter and both sugars.
Add egg and vanilla. Beat on medium speed for 2 to 3 minutes or until fluffy.
With the mixer on low speed, gradually add the flour mixture to the wet ingredients. Use a rubble spatula and scrape the sides of the bowl to incorporate all the ingredients.
Mix until throughly combined and soft dough forms.
Use a rubber spatula or wooden spoon and gentle fold in the chocolate chips into the dough.
Using a large spoon, place large scoopfuls of cookie dough in the prepared baking dish. Use all of the cookie dough. Do not worry about forming perfect cookie dough balls, it spreads out during baking.
Brownie Batter - In a separate bowl, combine the brownie mix, water, oil, and egg with a whisk until well combined.
Pour the brownie batter over the cookie dough and spread it around evenly.
Cover pan with aluminum foil. Bake for 15 minutes. Use oven mitts and remove foil and bake for an additional 15 to 20 minutes. (see Top Tips)
Place the pan on a wire rack. For best results, let the brownies completely cool before cutting. (see Top Tips)

Notes

Variations of Brownie Cookies

Brownie - Use whatever brownie batter you like the best. I usually get the BOGO at my local grocery store. I like the convenience of boxed brownie mix when I need the perfect sweet treat ASAP. If you want to make the brownies from scratch, try the delicious easy recipe from Handle The Heat.

Semi-sweet chocolate chips - You can use dark chocolate chips, milk chocolate chips, or even white chocolate chips.

Nuts - Mix in 1/2 cup of your favorite chopped nuts into the cookie dough or brownie batter. Walnuts or pecans are the most popular.

Caramel Sauce - After the Marbled Cookie Brownie is done baking, drizzle some melted caramel bits over the top before cutting and serving.

Sea Salt Flakes - This is one of my favorite toppings for the Marbled Chocolate Chip Cookie Brownie. Sea salt compliments the sweetness of the chocolate. Sprinkle a little over the brookies before serving. It's insanely good!

Top Tips

To ensure the chocolate chip cookie brownies don't crumble when cutting, make sure they are completely cool. Also, use a plastic knife for the cleanest cut lines.

For fudgy brownies, total bake time is around 30 minutes. For a crispy brownie, total time is 40 minutes.

How To Store