Chocolate Chip Cookie Brownies (Brookies) – Fudgy & Chewy!

Chocolate Chip Cookie Brownies are the ultimate indulgence, blending fudgy brownie richness with chewy chocolate chip cookie goodness in one irresistible bar. This easy recipe delivers perfect texture every time using a simple one-bowl method and no-chill dough.

Why You’ll Love This Recipe

These brookies combine the best of both worlds in a crowd-pleasing dessert. Key highlights include:

• Ultra-fudgy brownie base with a crackly top.
• Chewy chocolate chip cookie layer packed with melty chips.
• No-chill dough for quick prep in under 20 minutes.
• One-pan baking that serves 16 generous squares.
• Make-ahead friendly for holidays or potlucks.

Ingredients You’ll Need

This recipe uses pantry staples measured in cups and grams for precision. Yields one 8×8-inch pan (double for 9×13).​

Brownie Batter Ingredients

• 1/2 cup (113g) unsalted butter
• 4 oz (113g) semi-sweet chocolate, chopped (or chips)
• 3/4 cup (150g) granulated sugar
• 1/4 cup (50g) brown sugar, packed
• 2 large eggs, room temperature
• 1 tsp vanilla extract
• 1/3 cup (40g) Dutch-process cocoa powder
• 1/2 cup (65g) all-purpose flour
• 1/4 tsp salt

Notes: Use chopped chocolate bars for extra fudginess over chips. Dutch cocoa gives deeper flavor; natural works too.

Chocolate Chip Cookie Dough Ingredients

• 6 tbsp (85g) unsalted butter, melted (or browned for nutty flavor)
• 1/4 cup (50g) granulated sugar
• 1/2 cup (100g) brown sugar, packed
• 1 large egg yolk
• 1 tsp vanilla extract
• 3/4 cup (95g) all-purpose flour
• 1/4 tsp baking soda
• 1/4 tsp salt
• 3/4 cup (130g) semi-sweet chocolate chips

Notes: Brown the butter by cooking until golden and fragrant for richer taste. Room-temperature yolk mixes smoothly.

Step-by-Step Instructions

Prep time: 20 minutes. Bake time: 25-30 minutes. Total: 50 minutes (plus cooling).

Step 1: Make the Brownie Batter

1. Preheat oven to 350°F (175°C). Line an 8×8-inch metal pan with parchment, leaving overhang for easy removal.
2. Melt butter and chocolate in a microwave-safe bowl in 20-second bursts, stirring until smooth. Let cool 2 minutes.​
3. Whisk in sugars until combined. Add eggs and vanilla; whisk vigorously 1 minute until glossy.
4. Sift in cocoa, flour, and salt. Fold gently with spatula until just combined – no overmixing.

Step 2: Make the Cookie Dough

1. In another bowl, stir melted butter with both sugars until smooth.
2. Mix in egg yolk and vanilla.
3. Add flour, baking soda, and salt; stir until dough forms. Fold in chocolate chips.

Step 3: Layer the Batter

1. Spread half the brownie batter evenly in the prepared pan.
2. Drop cookie dough in large spoonfuls over the brownie layer, then gently spread to cover.
3. Spoon remaining brownie batter over cookie dough. Dollop reserved cookie dough on top and swirl lightly with a knife for marbled effect.​

Step 4: Bake and Cool

1. Bake 25-30 minutes until edges are set and center has a slight jiggle. Top will crackle.
2. Cool in pan 30 minutes, then lift out and cool fully on a wire rack (2 hours) for clean slices.
3. Cut into 16 squares. Serve at room temperature.

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Tips for Perfect Fudgy Brookies

• Use a metal pan for even baking; glass holds heat longer and risks overbaking edges.​
• Check doneness by inserting a toothpick 2 inches from edge – fudgy crumbs are ideal, not wet batter.
• Spoon and level flour or weigh for accuracy; too much dries them out.
• For extra gooey centers, underbake slightly and chill before slicing.
• Quality chocolate makes a big difference – use 55-60% cacao.
• Pan banging optional: Bang pan on counter midway through baking to deflate bubbles.

Storage & Make-Ahead

Store airtight at room temperature up to 4 days. Refrigerate up to 1 week (bring to room temp before serving to restore chew).​

Freeze individual squares wrapped in plastic and foil up to 3 months. Thaw overnight in fridge; microwave 10 seconds if needed.

Make ahead: Assemble and bake up to 2 days early, or freeze unbaked pan up to 1 month (add 5 minutes bake time).

Common Problems & Fixes

• Underbaked center: Bake 3-5 more minutes or use oven thermometer for accuracy.
• Dry or cakey: Overmixed batter, too much flour, or overbaked – measure precisely next time.
• Cookie layer spreads thin: Dough too warm; chill 10 minutes before layering.
• Edges burnt: Lower oven rack or tent foil after 20 minutes.

Frequently Asked Questions

Can I double this recipe?

Yes, use a 9×13-inch pan and bake 28-35 minutes. Perfect for crowds.

Can I use a glass pan?

Yes, but reduce oven to 325°F and add 5 minutes – glass retains heat.

Can I use store-bought cookie dough?

Yes, one 14-oz tube works for the cookie layer; press evenly.

How do I know when brookies are done?

Edges set, center slightly wobbly, toothpick near edge has moist crumbs.​

Can I make these gluten-free?

Swap 1:1 gluten-free flour blend; add 1/4 tsp xanthan gum if not included.

Why use egg yolk only in cookie dough?

It adds chew without excess moisture; full egg makes cookies cakier.

Can I add nuts or mix-ins?

Stir 1/2 cup chopped walnuts or M&Ms into cookie dough.

Nutrition Information (Per Square, 16 Servings)

Approximate values; varies by brands:

Nutrient	Amount
Calories	280 kcal ​
Total Fat	15g
Carbohydrates	34g
Protein	3g
Sugar	25g

Estimates only – calculate with your tools for precision.

More Dessert Recipes to Try

Love layered treats? Check out fudgy brownies, brown butter chocolate chip cookies, or small-batch blondies for your next bake.

Dig in and enjoy these chocolate chip cookie brownies – they’re even better the next day! Save this recipe and share your results

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