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Homemade Brown Butter Chocolate Chip Blondies

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If you enjoy soft, chewy dessert bars with rich homemade flavor, these Homemade Brown Butter Chocolate Chip Blondies are one recipe worth baking

Made with nutty browned butter, soft brown sugar, and plenty of melty chocolate chips, these blondies bake up perfectly chewy in the center with crisp golden edges.

Unlike regular blondies, the browned butter adds a deep caramel-like flavor that makes every bite taste extra special.

They’re easy to make with simple pantry ingredients and perfect when you want a homemade dessert without the fuss.

These chocolate chip blondies are perfect for potlucks, parties, bake sales, lunchbox treats, holiday dessert trays, family gatherings, or anytime you need a crowd-pleasing dessert bar.

Blondies vs Brownies — What Is the Difference?

Brownies get their flavour from cocoa powder or melted chocolate. Blondies get theirs from brown sugar.

Brown sugar is made with molasses which gives blondies that distinctive deep, butterscotch-like flavour that is incredibly rich and complex.

Combined with melted butter and vanilla, the base of a blondie batter tastes incredible even before anything else goes into it.

The texture is similar to a brownie — dense and fudgy rather than cakey — but the flavour is warmer, sweeter, and more caramel-like. Some people prefer blondies to brownies.

Why You Will Love These

Ingredients

  • 1 cup (225g) unsalted butter, melted and slightly cooled

  • 1½ cups (300g) light or dark brown sugar, packed

  • ¼ cup (50g) white granulated sugar

  • 2 large eggs plus 1 egg yolk, at room temperature

  • 2 tsp pure vanilla extract

  • 2 cups (250g) all-purpose flour

  • 1 tsp baking powder

  • ½ tsp baking soda

  • 1 tsp salt

  • 1½ cups (255g) semi-sweet chocolate chips, divided

  • Flaky sea salt for sprinkling on top (optional but highly recommended)

Directions

  • Brown the butter
    Place the butter in a light-coloured saucepan over medium heat — a light pan lets you see the colour change clearly.
    Melt the butter completely, stirring occasionally. Continue cooking as it foams, bubbles, and sizzles.

    Keep stirring and watch closely — after about 4–5 minutes the butter will clear, the foam will subside, and you will see golden brown specks forming on the bottom of the pan.
    At this point it will smell deeply nutty and toasty — almost like popcorn or hazelnuts.

    The moment it reaches a deep amber colour and smells incredible, remove it from the heat immediately and pour it into a large heatproof mixing bowl.

    Do not leave it on the heat a moment longer — it goes from perfect to burned very quickly.

    Let the brown butter cool in the bowl for 10–15 minutes until it is warm but not hot before continuing.
  • While the butter cools, preheat your oven to 350°F (175°C).
    Grease a 9×13 inch baking dish and line with parchment paper leaving overhang on both long sides so you can lift the whole slab out cleanly once cooled.
    Grease the parchment too.
  • Once the brown butter has cooled to warm, add both sugars to the bowl and whisk together until smooth and glossy.
    Add the eggs, egg yolk, and vanilla extract. Whisk vigorously for a full minute until the mixture is smooth and slightly lighter in colour.
    The sugar should be fully dissolved and the mixture should look almost like a thick ribbon when you lift the whisk.
    This step adds air and is what gives the blondies that beautiful shiny, slightly crackly top.
  • Add the flour, baking powder, baking soda, and salt directly into the wet ingredients.
    Fold everything together until just combined.
    Do not overmix. Overmixing develops gluten and will turn your chewy fudgy blondies into something tough and cakey.
    Fold gently and stop early.
  • Fold in 1 cup of the chocolate chips and stir to distribute evenly through the batter.
    Reserve the remaining ½ cup for the top. The batter will be very thick and almost dough-like — this is exactly right.
  • Spread the batter evenly into the prepared baking dish, pushing it all the way to the corners.
    Scatter the reserved ½ cup of chocolate chips over the surface and press them in very lightly so they stay on top during baking.
    Sprinkle flaky sea salt generously over the top — this is not optional.
    Bake for 22–26 minutes. The top should be deep golden, set, and slightly crackly.
    The edges should be pulling away from the sides of the pan. The centre should look just barely done — perhaps even slightly underdone. This is correct and intentional.
    A toothpick inserted in the centre should come out with a few moist crumbs attached — not wet batter, but not completely clean.
    That slightly tacky crumb is the sign of a perfectly fudgy blondie.
  • Remove from the oven and let the blondies cool in the pan for at least 30 minutes. Then use the parchment overhang to lift the whole slab out onto a wire rack and cool for another 20–30 minutes before slicing.
  • Slice into 16 squares or bars and serve.


The Most Important Tips for Perfect Blondies

Do not overbake.

This is the number one mistake people make with blondies. They look underdone when they come out of the oven and the instinct is to put them back in for a few more minutes.

Resist it. The blondies will continue cooking from the residual heat of the pan as they cool. Overbaked blondies are dry and crumbly rather than dense and fudgy.

Use brown sugar that is fresh and moist.

Old, dry brown sugar that has gone hard will not incorporate properly and will affect the texture. Fresh, soft brown sugar is what gives blondies their chewy, moist crumb.

Do not skip the extra egg yolk.

It adds fat and richness that makes the texture significantly more fudgy. It is one extra step that makes a noticeable difference.

Room temperature eggs.

Cold eggs can cause the melted butter to solidify when mixed together. Room temperature eggs incorporate much more smoothly and evenly.

Weigh your flour if you can.

Too much flour is the second most common reason blondies come out dry and cakey rather than fudgy. Measuring by weight is always more accurate than measuring by cup.

If you are using cups, spoon the flour into the measuring cup rather than scooping — scooping packs the flour and can add up to 20% more than the recipe intends.

Line the pan with parchment.

This is not optional for perfect blondies. It allows you to lift the whole slab out cleanly and cut perfectly even bars on a flat surface. Trying to cut blondies in the pan always results in uneven squares and damaged edges.

Use good quality chocolate chips.

You taste every ingredient in blondies and the chocolate chips are a major flavour component. Use semi-sweet or dark chocolate chips for the best balance against the sweet caramel base.

How To Store Blondies

At room temperature — store in an airtight container at room temperature for up to 5 days. They actually get slightly chewier and more fudgy on day two and three which many people prefer.

In the fridge — keep in an airtight container for up to a week. Let them come to room temperature before eating or warm in the microwave for 10–15 seconds.

In the freezer — blondies freeze beautifully for up to 3 months. Wrap individual squares in plastic wrap and place in a freezer bag. Thaw at room temperature for about an hour or warm in the microwave for 20–30 seconds for a warm, gooey treat whenever you need one.

Homemade Chocolate Chip Blondies

Course: Recipes
Servings

4

servings
Prep time

30

minutes
Cooking time

40

minutes
Calories

300

kcal

Ingredients

  • 1 cup (225g) unsalted butter, melted and slightly cooled

  • 1½ cups (300g) light or dark brown sugar, packed

  • ¼ cup (50g) white granulated sugar

  • 2 large eggs plus 1 egg yolk, room temperature

  • 2 tsp pure vanilla extract

  • 2 cups (250g) all-purpose flour

  • 1 tsp baking powder

  • ½ tsp baking soda

  • 1 tsp salt

  • 1½ cups (255g) semi-sweet chocolate chips, divided

  • Flaky sea salt for topping (optional)

Directions

  • Brown the butter — melt butter in a light-coloured saucepan over medium heat. Cook stirring occasionally until the butter foams, clears, and golden brown specks form on the bottom and it smells deeply nutty — about 4–5 minutes. Pour immediately into a large heatproof bowl. Cool for 10–15 minutes until warm but not hot.
  • Preheat oven to 350°F (175°C). Grease and line a 9×13 inch baking dish with parchment paper leaving overhang on the sides.
  • Whisk both sugars into the cooled brown butter until smooth and glossy.
  • Add eggs, egg yolk, and vanilla. Whisk vigorously for 1 full minute until smooth and slightly lighter in colour.
  • Add flour, baking powder, baking soda, and salt. Fold with a spatula until just combined — stop the moment no dry flour streaks remain. Do not overmix.
  • Fold in 1 cup of chocolate chips.
  • Spread batter evenly into the prepared pan all the way to the corners.
  • Scatter remaining ½ cup chocolate chips over the top and press in lightly. Sprinkle generously with flaky sea salt.
  • Bake for 22–26 minutes until the top is deep golden and set, edges are pulling away from the sides, and a toothpick in the centre comes out with a few moist crumbs — not wet batter.
  • Cool in the pan for 30 minutes then lift out using the parchment and cool on a wire rack for 20–30 minutes before slicing into 16 bars.

Notes

  • Do not overbake. The blondies will look underdone when they come out of the oven — they firm up as they cool. This is what gives them their fudgy centre.
  • Weigh the flour if possible. Too much flour makes blondies cakey. If using cups, spoon flour into the measuring cup — do not scoop directly from the bag.
  • The extra egg yolk is not optional — it is what makes the texture noticeably richer and fudgier.
  • Use dark brown sugar for an even deeper caramel and butterscotch flavour.

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