Gooey Brown Butter Blondies with Pecans

Rich and decadent blondies made with brown butter and toasted pecans, featuring layers of buttery batter swirled with a brown butter mixture. These chewy, nutty treats are perfect served warm with vanilla ice cream.

12 servings
1 hr 5 min

Ingredients

  • ½ cup unsalted butter
  • 1 large egg
  • ¾ cup light brown sugar
  • 1 teaspoon vanilla extract
  • ½ teaspoons kosher salt
  • cup all-purpose flour
  • 1 cup unsalted butter
  • cups all-purpose flour
  • cups pecans
  • teaspoons baking powder
  • teaspoons kosher salt
  • cups light brown sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1 serving vanilla ice cream

Cooking Instructions

  1. 1.

    Cook butter in a medium saucepan over medium heat, stirring often, until butter foams, then browns, 5-8 minutes. Transfer brown butter to a medium bowl; let cool slightly. Add egg, brown sugar, vanilla, and salt and beat until mixture is light and falls back onto itself in a slowly dissolving ribbon, about 3 minutes. Fold in flour.

    8 min

  2. 2.

    Preheat oven to 350°. Butter a 13x9" baking dish and dust with flour. Toast pecans on a rimmed baking sheet, tossing once, until slightly darkened and fragrant, 8-10 minutes. Let cool.

    10 min

  3. 3.

    Whisk baking powder, salt, and 2 1/4 cups flour in a medium bowl. Using an electric mixer on medium-high speed, beat brown sugar and 1 cup butter in a large bowl until light and fluffy, about 5 minutes. Add eggs one at a time, beating between additions; mix until pale and fluffy, about 2 minutes. Mix in vanilla.

    7 min

  4. 4.

    Reduce speed to low and mix in dry ingredients. Fold in half of pecans. Scrape two-thirds of batter into prepared baking dish; smooth top, pushing batter to edges. Alternating, dollop brown butter mixture and remaining batter on top. Smooth and sprinkle remaining pecans over.

    5 min

  5. 5.

    Bake until blondie is golden brown and firm (a tester will not come out clean), 30-35 minutes. Let cool before slicing. Serve with ice cream.

    35 min

  6. 6.

    Do ahead: Blondies can be made 1 day ahead. Store tightly wrapped at room temperature.