The Best Blondies

The Best Blondies

Buttery, soft, chewy, loaded with your favorite add-ins, these cookie bars are packed with flavor.


  • 1 cup unsalted butter melted
  • 1 1/4 cup brown sugar* tightly packed
  • 1/2 cup sugar
  • 2 large eggs + 1 egg yolk room temperature preferred
  • 2 teaspoons vanilla extract
  • 2 1/2 cups all-purpose flour 
  • 2 teaspoons cornstarch
  • 1/2 teaspoon baking powder
  • 1 teaspoon salt
  • 2/3 cup white chocolate chips
  • 1 cup chopped walnuts


  • Preheat oven to 350F and line a 13x9 pan with parchment paper**
  • Combine melted butter and sugar in a large bowl and stir well.
  • Add eggs, egg yolk, and vanilla extract and stir until completely combined. Set aside.
  • In a separate bowl, whisk together flour, cornstarch, baking powder, and salt.
  • Gradually stir dry ingredients into wet until completely combined.
  • Fold in white chocolate chips and nuts, if using.
  • Spread blondie batter into prepared pan and transfer to oven.
  • Bake on 350F (175C) for 25-30 minutes*** or until a toothpick inserted in the center comes out clean or with a few fudgy crumbs.
  • Allow to cool before cutting and enjoying
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