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5 from 7 votes

Brown Butter Vanilla Bean Blondies

These brown butter vanilla bean blondies are rich, gooey, and completely decadent.
Prep Time10 mins
Cook Time23 mins
Total Time33 mins
Course: Dessert
Cuisine: American
Keyword: vanilla bean blondies
Servings: 16 blondies (or 9 larger bars)
Calories: 141kcal
Author: Jennifer Farley


  • 4 ounces unsalted butter
  • 1 large egg, beaten
  • 1 teaspoon pure vanilla extract
  • 1 cup packed light brown sugar
  • 1 vanilla bean
  • 5 ounces all-purpose flour (approximately 1 cup)
  • 1/2 teaspoon baking powder
  • 1/8 teaspoon baking soda
  • 1/4 teaspoon kosher salt


  • Preheat the oven to 350 degrees F. Grease an 8x8 pan.
  • Melt the butter in a small saucepan over medium heat. Once the butter is completely melted, turn the heat up to medium high and whisk constantly for several minutes until the butter has browned (watch carefully during this process to make sure it does not burn). Allow to cool for several minutes.
  • Use a paring knife to split the vanilla bean and scrape out the seeds.
  • In a large bowl, whisk together the browned butter, egg, vanilla extract and brown sugar until smooth. In a separate bowl, whisk together the vanilla seeds, flour, baking soda, baking powder, and salt.
  • Stir the dry ingredients into the wet until evenly combined. Pour into the greased pan, spreading the mixture evenly.
  • Bake for 20-23 minutes or until a toothpick comes out clean. Allow to cool before serving.


Calories: 141kcal | Carbohydrates: 20g | Protein: 1g | Fat: 6g | Saturated Fat: 3g | Cholesterol: 26mg | Sodium: 54mg | Potassium: 44mg | Sugar: 13g | Vitamin A: 195IU | Calcium: 22mg | Iron: 0.6mg