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The BEST Blondies

The Best Blondies I've ever had! This easy, one-bowl blondie recipe yields extra chewy, buttery, rich, blondies with hardly any effort at all! 
Prep Time5 mins
Cook Time22 mins
Total Time27 mins
Course: Dessert
Cuisine: American
Keyword: bars, best blondies, blondie recipe, blondies, dessert
Servings: 16
Calories: 302kcal
Author: Trish - Mom On Timeout


  • 1 cup unsalted Challenge butter melted and cooled slightly
  • 1 2/3 cups brown sugar packed
  • 2/3 cup granulated sugar
  • 2 eggs room temperature
  • 1 egg yolk room temperature
  • 1 tbsp vanilla extract
  • 2 1/4 cups all purpose flour
  • 2 tbsp corn starch
  • 1 tsp baking powder
  • 1 tsp salt
  • 1 cup butterscotch, peanut butter, semi-sweet, or white chocolate chips


  • Preheat oven to 350F degrees. Lightly grease a 13 x 9 baking pan and line with parchment paper. Set aside.
  • In a large bowl, combine melted butter and sugars. Stir well to combine.
  • Stir in eggs, egg yolk and vanilla extract until completely combined.
  • Add flour, corn starch, baking powder and salt. Stir just until combined.
  • Fold in chips of your choice.
  • Transfer batter to the prepared baking dish and spread evenly.
  • Bake for 22 to 27 minutes or until an inserted toothpick near the edge comes out with just a few moist crumbs.
  • Let cool completely before cutting into bars and serving.
  • Store leftovers in an airtight container for up to three days.



Calories: 302kcal | Carbohydrates: 45g | Protein: 2g | Fat: 12g | Saturated Fat: 7g | Cholesterol: 63mg | Sodium: 162mg | Potassium: 91mg | Sugar: 30g | Vitamin A: 400IU | Calcium: 43mg | Iron: 1.1mg