Brown Butter Pecan Blondies

Blondies are one of the most forgiving things you can bake, and this version is my favorite. Everything comes together in one bowl with a whisk, so there’s no mixer to clean afterward.

What sets these apart is browning the butter first. A few extra minutes on the stove turns it golden and nutty, and that flavor runs through every bite, along with the brown sugar and toasted pecans. The result is chewy in the middle, slightly crisp at the edges, and rich without being too sweet.

One pan makes 24 squares, and they travel well, which makes them a good choice whenever you’re asked to bring something sweet.

Why these blondies work

• Brown butter adds a nutty, caramel depth that plain melted butter can’t.

• All brown sugar makes them chewy and gives them a butterscotch flavor.

• No mixer needed. Everything is whisked by hand in one bowl.

• Toasted pecans stay crunchy and taste richer than raw ones.

Ingredients for brown butter blondies

• Unsalted butter: lets you control the salt, and its milk solids are what turn golden and nutty.

• Light brown sugar: packed firmly. Dark brown sugar works for a deeper molasses flavor.

• Pecans: toast them at 350°F for 6–8 minutes before chopping.

• Flaky sea salt: optional, but it balances the sweetness.

Ingredients

• 1 cup (2 sticks / 225 g) unsalted butter

• 2 cups (400 g) light brown sugar, packed

• 2 large eggs

• 2 teaspoons pure vanilla extract

• 2 cups (250 g) all-purpose flour

• 1 teaspoon baking powder

• ½ teaspoon salt

• 1 cup (100 g) toasted pecans, chopped

• Optional: flaky sea salt, to finish

Method

1. Heat the oven: Heat the oven to 350°F. Line a 13×9 pan with parchment, leaving an overhang for lifting.

2. Brown the butter: Melt the butter in a saucepan over medium heat. Keep cooking, swirling often, until it smells nutty and turns amber, 5–7 minutes. Pour it into a large bowl and cool for 5 minutes.

3. Whisk: Whisk in the brown sugar, eggs and vanilla until glossy and smooth.

4. Add the dry ingredients: Stir in the flour, baking powder and salt just until combined. Don’t overmix.

5. Fold in the pecans: Fold in the pecans and any extra mix-ins.

6. Bake: Spread the batter into the pan and smooth the top. Bake for 25–30 minutes, until golden and just set in the center.

7. Cool and slice: Cool completely, then lift out and cut into 24 squares. Sprinkle with flaky salt. Dessert is served.

Tips for the best blondies

• Watch the butter closely. Once it foams and the bits on the bottom turn golden brown, take it off the heat. It burns quickly after that.

• Scrape in all the browned bits. That’s where the flavor is.

• Cool completely before slicing for clean edges.

• Take them out while the center is just set. They firm up as they cool.

Substitutions

• No pecans? Use walnuts, chocolate chips, white chocolate chunks or toffee bits.

• Dark brown sugar: swap 1:1 for a deeper flavor.

• Smaller batch: halve everything and bake in an 8×8 pan for 22–25 minutes.

How to store blondies
Keep them covered at room temperature for up to 4 days, or freeze for up to 3 months.

FAQ
How do I know when the butter is browned? It smells like toasted nuts, and the bits at the bottom of the pan turn golden brown.
Why are my blondies cakey? Usually from overmixing after adding the flour. Stir just until no streaks remain.
Can I make them ahead? Yes. They taste even better the next day.

What I used
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• 13×9 baking pan

• Light-colored saucepan (makes it easier to see the butter brown)

• Parchment paper

• Hand Mixer

• Flaky sea salt