Brown Butter Blondies

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1 hour 50 minutes

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These mouthwatering Brown Butter Blondies make the richest, chewiest bars, with a deep, nutty flavor and golden crackly tops. Loaded with dark chocolate and a delicious, gooey and buttery texture, they’re everything you crave in a dessert bar.

Chocolate chip cookie bars cooling on a wire rack, with gooey melted chocolate visible inside the baked bars.
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Brown Butter Blondie Recipe

These Brown Butter Blondies have that kind of flavor that makes me stop mid-bite and totally forget what I’m saying…they’re THAT good! Like my brown butter chocolate chip cookies, the browned butter gives them a toasty richness, but once it mixes with brown sugar and vanilla, it’s pure dessert magic.

It’s like two of my favorite desserts, soft cookies and gooey brownies, rolled up into one delicious treat! The best part is that they’re super easy (I love that I don’t even have to pull out my mixer).

With golden crackly tops and soft, chocolatey centers, the hardest part about making these is waiting for them to finish baking. They always fill my kitchen with the most amazing smell that’s impossible to resist. But it’s always worth the wait because with those crispy edges and soft, chocolatey center, they taste even better than they smell!

If you love dessert bars with a twist, be sure to check out my Buckeye Brownies and these Strawberry Brownies too!

Seven chocolate chunk blondies are arranged on a cooling rack next to a cup of coffee and pieces of dark chocolate on a light-colored surface.

Why We Love This Recipe

  • Easy to make: A few simple ingredients, one bowl and a whisk gets the job done.
  • Rich flavor: The browned butter gives them a deep, delicious, toasty flavor.
  • Perfect texture: Chewy in the middle, crisp edges, and loaded with melty chocolate.

Ingredients

A flat lay of baking ingredients: light brown sugar, all-purpose flour, egg, unsalted butter, dark chocolate chunks, vanilla extract, salt, and baking powder in bowls.
  • Unsalted butter: This gets browned for that rich, nutty flavor
  • Light brown sugar: Adds chewiness and caramel flavor
  • Egg: Helps bind the ingredients and keep the texture soft
  • Vanilla extract: Adds a warm, sweet flavor
  • Salt: Balances out the sweetness and enhances the other flavors
  • All-purpose flour: The base that gives these blondies structure
  • Baking powder: Gives them enough lift without making them cakey
  • Dark chocolate chunks: For big melty pockets in every bite

How To Make Brown Butter Blondies

Step 1. Preheat the oven to 350°. Line an 8×8-inch baking pan with parchment paper, leaving an overhang on the sides for easy removal.

Step 2. In a medium saucepan, brown the butter over medium heat. Stir often, until it foams and turns golden, toasty brown with a nutty aroma (about 5 to 7 minutes). Remove from heat to avoid burning the butter and use a spoon to skim the foam off the top. Pour the browned butter into a large mixing bowl and let it cool slightly.

Step 3. Let the melted butter cool for about 5 to 7 minutes. Then, add the brown sugar and granulated sugar and whisk until smooth and well combined.

A saucepan filled with brown butter sits on a light-colored surface, with a wooden-handled utensil partially visible underneath.
A glass bowl containing brown sugar and brown butter on a light-colored surface.

Step 4. Add the egg and whisk well.

Step 5. Stir in the vanilla extract and salt.

A glass bowl containing brown sugar, butter, and an egg on a light countertop, viewed from above.
A glass bowl containing a mixture of wet baking ingredients, including melted butter and vanilla extract, on a light countertop.

Step 6. Sift the flour and baking powder over the bowl.

Step 7. Then, gently fold into the mixture with a spatula until just combined. Be careful not to overmix.

A metal sifter filled with flour rests on a glass bowl containing a brown mixture, set on a light-colored surface.
A glass mixing bowl containing thick brown batter being stirred with a white spatula on a light-colored surface.

Step 8. Fold in the chocolate chunks. The batter will be thick—that’s exactly how it should be.

Step 9. Spread the batter evenly in the prepared pan and smooth the top with a spatula.

A glass bowl with cookie dough and chopped chocolate, being mixed with a white spatula on a light-colored surface.
A rectangular baking dish lined with parchment paper filled with unbaked cookie dough batter, ready to be baked.

Step 10. Bake for 25 to 30 minutes, or until the edges are golden brown and the top is slightly cracked.

Step 11. Let the blondies cool completely in the pan on a wire rack, about 1 to 2 hours. Lift them out using the parchment overhang and then cut into squares.

A square baking pan lined with parchment paper holds a freshly baked batch of chocolate chip blondies on a light surface.
Nine chocolate chip blondies arranged in a 3x3 grid on parchment paper.

Storage Instructions

  • Fridge: Store leftover blondies in an airtight container for up to 1 week.
  • Freezer: This is a great recipe to freeze. Just freeze your blondies in a single layer, then transfer to a sealed bag or container for up to 2 months. Thaw overnight in the fridge or on the counter for a couple of hours.
Several chocolate chip blondies rest on a wire cooling rack, with a spoon and a piece of parchment paper nearby.

Tips And Tricks

Before you grab your whisk, these quick pointers will help you get the best texture and flavor every single time.

  • Let the browned butter cool for at least 5-10 minutes. Otherwise it may cook the eggs.
  • Scrape all of the brown bits from the bottom of the pan. This is where the flavor lives.
  • Don’t overmix once the flour is added or your blondies won’t stay tender.
  • You can use any pan, but a metal one will give you more even browning than glass.
  • Test for doneness with a toothpick. You’re looking for moist crumbs, not wet batter.
Four chocolate chip cookie bars rest on a metal cooling rack, with one bar turned to show its gooey, melted chocolate interior.

Variations And Add-ins

Want to mix things up a little? I love using easy add-ins and swaps to give my blondies a few fun twists.

  • Chocolate: Swap the chopped chocolate for milk chocolate chunks, white chocolate chips or butterscotch chips for a tasty twist.
  • Nuts: Add some chopped walnuts or pecans for crunch.
  • Flaky salt: Sprinkle a pinch of flaky sea salt on top before baking for a salty-sweet finish.
  • Peanut butter: Try swirling in a few spoonfuls of peanut butter into the top before baking.
  • Candy additions: Fold in chopped caramel candies or toffee bits for extra chew.
Several brown butter chocolate chip blondies are stacked on a cooling rack, with a white ceramic mug in the background.

FAQs

Why are my blondies dry or cakey?

This usually happens if the batter is overmixed after adding the flour. Stop as soon as it’s combined.

Can I use salted butter instead?

Yes, just reduce the added salt slightly so that it doesn’t overpower the flavor.

Why didn’t my blondies bake evenly?

Glass pans tend to bake unevenly and take longer. Use a metal pan for the best results.

What if I don’t see cracks on top?

That’s okay. The top doesn’t always crack dramatically, but the edges should be golden and slightly pulled away from the pan.

Why does the butter foam and then brown?

It’s normal. The butter will foam while the water is evaporating and the milk solids are caramelizing.

Can I use dark brown sugar instead of light?

Yes, dark brown sugar works great in this recipe and gives the blondies an even deeper, more caramel-like flavor.

Close-up of several chocolate chip cookie bars cut into squares, showing a golden-brown surface and visible chocolate chunks.

More Delicious Dessert Bar Recipes

If you likes my brown butter blondies, you’re going to love these decadent desserts!

Six chocolate chip cookie bars are arranged on a cooling rack, with pieces of dark chocolate and a cup of coffee nearby on a light surface.
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Brown Butter Blondies


Course Dessert, Desserts & Sweets
Cuisine American
Prep Time 25 minutes
Cook Time 25 minutes
Cooling Time 1 hour
Total Time 1 hour 50 minutes
Rich, chewy and packed with dark chocolate, these Brown Butter Blondies are the ultimate dessert bar. One bite of these rich, decadent treats and you'll be totally hooked!

Ingredients
 

  • ½ cup unsalted butter
  • 1 cup light brown sugar
  • 1 egg
  • 2 tsp vanilla extract
  • ¼ tsp salt
  • 1 ¼ cup all-purpose flour
  • ¼ tsp baking powder
  • 1 cup dark chocolate chunks

Instructions

  • Preheat the oven to 350°. Line an 8×8-inch baking pan with parchment paper, leaving an overhang on the sides for easy removal.
  • In a medium saucepan, brown the butter over medium heat. Stir often, until it foams and turns golden, toasty brown with a nutty aroma (about 5 to 7 minutes).
    ½ cup unsalted butter
  • Remove from heat to avoid burning the butter and use a spoon to skim the foam off the top. Pour the browned butter into a large mixing bowl and let it cool slightly.
  • Let the melted butter cool for about 5 to 7 minutes. Then, add the brown sugar and granulated sugar and whisk until smooth and well combined.
    1 cup light brown sugar
  • Add the egg and whisk well until fully mixed.
    1 egg
  • Stir in the vanilla extract and salt.
    2 tsp vanilla extract, ¼ tsp salt
  • Sift the flour and baking powder over the bowl, then gently fold in with a spatula. Fold until just combined…don’t overmix.
    1 ¼ cup all-purpose flour, ¼ tsp baking powder
  • Fold in the chocolate chunks. The batter will be thick but that's exactly how it should be.
    1 cup dark chocolate chunks
  • Spread the batter evenly in the prepared pan and smooth the top with a spatula.
  • Bake for 25 to 30 minutes, or until the edges are golden brown and the top is slightly cracked.
  • Let the blondies cool completely in the pan on a wire rack, about 1 to 2 hours. Lift them out using the parchment overhang and cut into squares. Enjoy!

Notes

  • Store leftover blondies in an airtight container for up to 1 week.
  • This is a great recipe to freeze also. Just freeze these blondies in a single layer, then transfer to a sealed bag or container for up to 2 months. Thaw overnight in the fridge or on the counter for a couple of hours.
  • Let the browned butter cool for at least 5-10 minutes so it doesn’t cook the eggs.
  • Scrape all of the brown bits from the bottom of the pan. This is where the flavor lives.
  • Don’t overmix once the flour is added or the blondies won’t stay tender.
  • You can use any pan, but a metal one will give you more even browning than glass.
  • Test for doneness with a toothpick. You’re looking for moist crumbs, not wet batter.

Nutrition

Serving: 1g | Calories: 372kcal | Carbohydrates: 46g | Protein: 4g | Fat: 19g | Saturated Fat: 11g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 0.4g | Cholesterol: 46mg | Sodium: 84mg | Potassium: 212mg | Fiber: 3g | Sugar: 29g | Vitamin A: 349IU | Calcium: 48mg | Iron: 3mg
The nutrition information provided is an estimate and can vary based on cooking methods and ingredients used.

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    About Lisa O’Driscoll

    Lisa O’Driscoll is a lifestyle and parenting expert, cookbook author, and the creative force behind Fun Money Mom, a popular blog she’s Lisa O’Driscoll is a lifestyle and parenting expert, cookbook author, and the creative force behind Fun Money Mom, a popular blog she’s run since 2014. She’s the author of the children’s cookbook Roll It, Slice It, Mash It, Dice It, designed to get kids excited about cooking. With multiple TV appearances under her belt, she loves sharing her expertise on family-friendly recipes, creative DIYs, and party planning and is always on a mission to inspire and entertain!

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