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Brown-Butter Toffee Blondies

Brown butter is simply butter that has been cooked until it takes on a delicious, subtle nutty flavor and aroma—which explains its French name, beurre noisette, or “hazelnut butter.” Be sure to keep an eye on it as it cooks, to avoid burning.

Recipe information

  • Yield

    makes about 1 dozen

Ingredients

1 1/4 cups (2 1/2 sticks) unsalted butter, plus more for pan
2 1/4 cups all-purpose flour, plus more for pan
1 1/2 teaspoons baking powder
1 1/2 teaspoons salt
2 cups packed light brown sugar
1/2 cup granulated sugar
3 large eggs
2 1/2 teaspoons pure vanilla extract
1 cup chopped walnuts (about 4 ounces)
1 cup toffee bits

Preparation

  1. Step 1

    Preheat oven to 350°F. Butter a 9 by 13-inch baking pan. Line bottom of pan with parchment; butter and flour parchment.

    Step 2

    In a saucepan over medium heat, cook the butter until it turns golden brown; remove from heat, and let cool. Whisk together flour, baking powder, and salt.

    Step 3

    In the bowl of an electric mixer, combine browned butter and both sugars; stir with a wooden spoon until combined. Attach bowl to mixer; add eggs. Using the paddle attachment, beat on medium-high speed until light and fluffy, about 3 minutes. Add the vanilla, and beat to combine. Add the flour mixture, walnuts, and toffee bits. Mix until thoroughly combined, and pour into prepared pan.

    Step 4

    Bake until a cake tester inserted in the center comes out clean, 35 to 40 minutes (do not overbake). Transfer to a wire rack to cool completely before turning out of pan onto a cutting board. Peel off parchment paper; cut blondies into shapes with 3-to 3 1/2-inch cookie cutters. Blondies can be stored in airtight containers at room temperature up to 3 days.

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