Brown Butter Brookies: The Ultimate Sweet Treat
Okay, let’s be real. If you’re like me, you’ve probably found yourself scrolling through countless recipes looking for that perfect hybrid dessert to satisfy both your cookie and brownie cravings. And honestly? What’s better than a Brookie? Nothing, I tell ya. But I kept running into recipes that seemed overly complicated. I mean, who has time for a four-hour baking adventure? So, I decided to create my own Brown Butter Brookies recipe, and trust me, it’s worth every melted chocolate moment.
Now, here’s the thing—I think combining cookie dough with brownie batter is a match made in heaven, and browning the butter? Oh boy, that adds a whole new level of flavor! Just wait until you smell that nutty goodness wafting through your kitchen.
Ingredients: The Goods You’ll Need
Before diving in, let’s tackle the grocery list. You might want to grab a notepad (or just screenshot this), because I’ve got some essential staples and fun personal notes on what I used. Don’t worry, these ingredients are easy to find—just check the baking aisle and maybe make a detour to the chocolate section too.
- 14.5 tbsp salted butter (206 grams) – I use the good ol’ salted stuff.
- 3/4 cup dark brown sugar, packed (163 grams) – It’s got that nice, rich flavor.
- 3/4 cup granulated sugar (156 grams) – Because, you know, we need both types of sugar here!
- 2 large eggs, at room temperature – Seriously, don’t forget this step; it helps everything mix better.
- 1 and 1/2 tsp vanilla extract – Use the good stuff if you can. It makes a difference.
- 3 cups all-purpose flour, spooned & leveled (390 grams) – Just spoon and level. Trust me.
- 1 tsp baking soda – Adds that lovely lift!
- 1 tsp baking powder – Because we want these to rise!
- 1/2 tsp salt – Regular salt if you’re normal like me; sea salt if you’re fancy.
- 1 and 1/2 cups chocolate chips – Always add extra.
- 3/4 cup salted butter, cubed (170 grams, before browning, 140 grams after) – Yep, more butter. You’re welcome.
- 4 ounces semi-sweet chocolate, chopped – Or just toss in some more chocolate chips, you do you.
- 1/4 cup vegetable oil (56 mL) – Keeps things moist.
- 3/4 cup cocoa powder (63 grams) – The darker, the better.
- 3 large eggs, at room temperature – More eggs, because brownies!
- 1 large egg yolk, at room temperature – Just one; you’ll see why later.
- 3/4 cup granulated sugar (158 grams) – Two types of sugar, yay!
- 1 and 1/2 cups powdered sugar (174 grams) – It gives that fudgy texture.
- 2 tsp vanilla extract – Because vanilla makes everything better.
- 1/4 tsp salt – Sure, throw in a pinch.
- 1/2 cup all-purpose flour (65 grams) – Just a little for the brownie batter.
- Pinch of espresso powder (optional) – Makes the chocolate flavor pop.
- 1 cup semi-sweet chocolate chips – Honestly, who can resist more chocolate?
- Flaky sea salt, optional – Seriously, it elevates the whole thing.

Instructions: Let’s Get Cooking!
Alright, let’s roll our sleeves up and get to it! I promise, the smell of these Brown Butter Brookies will be worth it.
Prep your oven! Preheat to 350℉ (about 175℃). Spray a 9×13 metal pan with nonstick spray and line it with parchment paper. This step gives you easy removal later. Trust me, I’ve learned this the hard way.
Make the Chocolate Chip Cookie Dough:
- Melt 14.5 tbsp of butter in a large mixing bowl.
- Whisk in the dark brown sugar and granulated sugar until combined (about 30-45 seconds).
- Add the room temp eggs and vanilla, mixing until it’s smooth.
- Now, stir in the dry ingredients (flour, baking soda, baking powder, and salt), and finally fold in the chocolate chips.
- Divide the dough into two equal halves—aim for about 640 grams each (but hey, who’s weighing? Just eyeball it).
Press half of the dough into your prepared pan. Then, using that parchment paper you reserved, lift it out and just set it aside for later.
Brown the Butter:
- In a medium saucepan, melt 3/4 cup of cubed butter over medium heat. Stir occasionally; the butter will foam and bubble before turning golden brown and fragrant (about 3-6 minutes).
- Just, um, don’t walk away; you don’t want burnt butter. (I’ve done it. Total disaster.)
Make the Brownie Batter:
- Stir in the chopped chocolate until fully melted, then whisk in the vegetable oil and cocoa powder. Set aside to cool a bit.
- In a new bowl, whisk together the eggs, egg yolk, and granulated sugar until it dissolves—really feel the mixture. If it’s smooth, move on!
- Mix in the powdered sugar, vanilla, and salt. Check that your chocolate mixture is warm and NOT hot before adding it to the egg-sugar mixture.
- Finally, fold in the flour and espresso powder if you’re using it, and then add the chocolate chips.
Assemble:
- Spread a bit more than half the brownie batter in the bottom of your lined pan (seriously, eyeball it).
- Lay that sheet of cookie dough on top of the brownie batter, then spread the remaining brownie batter on top.
- Form extra cookie dough into thick discs and press them on top. It’ll look rustic and totally delish—promise.
- Toss in extra chocolate chips if you feel fancy.
Bake: Pop them in the oven for about 38 to 44 minutes. The top should be a shiny brownie crust; a toothpick will come out with moist crumbs, but not wet batter. DO NOT OVERBAKE!
Cool & Serve: Let them chill in the pan for about 1-2 hours on a wire rack. It’s really hard to wait, but you’ll thank me later. Sprinkle with flaky sea salt if you’re feeling extra gourmet. Store the leftovers (if there are any) in an airtight container at room temp for 3-4 days. Honestly, I love reheating slices in the microwave. Heaven.
Personal Tips: A Little Chaotic Wisdom
So, through my many experiments of baking these Brookies, I’ve learned a few things. First off, getting the butter just right when browning is essential (I mean, nobody wants burnt butter). If at first, they come out a bit dry, don’t panic—maybe pull them out a minute or two earlier next time.
And here’s a serving suggestion: grab a dollop of ice cream on top of a warm Brookie slice. That’s the good stuff right there. Have you ever tried this combo? Let me know in the comments because I’m curious!
Cooking’s all about learning and having fun (and maybe a delightful mess). So go ahead and give these Brown Butter Brookies a try. You might just impress your friends, or, heck, even yourself!
And if it all turns out wonderfully? Well, you can totally brag about it! 🍪❤️ Until next time, happy baking! Let me know how yours turns out!

Brown Butter Brookies
Ingredients
Method
- Preheat your oven to 350℉ (about 175℃).
- Spray a 9x13 metal pan with nonstick spray and line it with parchment paper.
- Melt 14.5 tbsp of butter in a large mixing bowl.
- Whisk in the dark brown sugar and granulated sugar until combined (about 30-45 seconds).
- Add the room temp eggs and vanilla, mixing until smooth.
- Stir in the dry ingredients (flour, baking soda, baking powder, and salt), then fold in the chocolate chips.
- Divide the dough into two equal halves.
- Press half of the dough into your prepared pan.
- In a medium saucepan, melt 3/4 cup of cubed butter over medium heat.
- Stir occasionally until golden brown and fragrant (about 3-6 minutes).
- Stir in the chopped chocolate until melted, then whisk in the vegetable oil and cocoa powder. Set aside to cool.
- In a new bowl, whisk together the eggs, egg yolk, and granulated sugar.
- Mix in the powdered sugar, vanilla, and salt.
- Add the warm (not hot) chocolate mixture to the egg-sugar mixture.
- Fold in the flour and espresso powder (if using), then add the chocolate chips.
- Spread more than half the brownie batter in the bottom of the lined pan.
- Lay the cookie dough on top, then spread the remaining brownie batter on top.
- Form extra cookie dough into thick discs and press them on top.
- Bake for about 38 to 44 minutes.
- The top should have a shiny brownie crust.
- A toothpick will come out with moist crumbs but not wet batter.
- Let them chill in the pan for about 1-2 hours on a wire rack.
- Sprinkle with flaky sea salt if desired.
- Store leftovers in an airtight container at room temp for 3-4 days.
