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Brown Butter Apple Blondies with Glaze on a white platter

Golden Brown Butter Apple Blondies with Vanilla Glaze

These delightful blondies combine the rich, nutty flavor of brown butter with tender diced Fuji apples, all topped with a sweet vanilla glaze. They are a perfect treat that balances comforting flavors with a hint of sophistication.
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Prep Time 20 minutes
Cook Time 28 minutes
Total Time 1 hour 55 minutes
Servings 16 pieces
Calories 380 kcal

Equipment

  • Light-colored saucepan
  • Heat-proof bowl
  • Large bowl
  • Whisk
  • Medium bowl
  • 8x8 or 9x9 inch baking pan
  • Parchment paper
  • Toothpick
  • Small bowl

Ingredients
  

For the Blondies

  • 1 cup unsalted butter (2 sticks)
  • 1 cup granulated sugar
  • 1/2 cup brown sugar packed
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1 1/2 cups all-purpose flour
  • 1 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1 1/2 cups fresh Fuji apples diced
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon ground nutmeg

For the Glaze

  • 1 1/2 cups powdered sugar
  • 2 tablespoons milk
  • 1/2 teaspoon vanilla extract

Instructions
 

Blondie Preparation

  • Melt butter in a light-colored saucepan over medium heat, stirring continuously until it foams, turns golden, and nutty brown bits form at the bottom. Immediately pour into a heat-proof bowl to stop cooking.
  • In a large bowl, whisk the cooled brown butter with granulated sugar and brown sugar until smooth, then beat in the eggs one at a time before stirring in the vanilla extract.
  • In a separate medium bowl, whisk together the all-purpose flour, baking powder, salt, cinnamon, and nutmeg.
  • Gradually add the dry ingredients to the wet ingredients, mixing until just combined, being careful not to overmix.
  • Gently fold the diced apples into the blondie batter until they are evenly distributed.

Baking and Glazing

  • Lightly grease and flour an 8x8 or 9x9 inch baking pan, or line it with parchment paper, leaving an overhang to easily lift the blondies out.
  • Spread the batter evenly into the prepared pan and bake in a preheated oven at 350°F (175°C) for 25-30 minutes, or until the edges are golden brown and a toothpick comes out with moist crumbs.
  • Let the blondies cool completely in the pan before glazing, as this is crucial for proper setting and clean slices.
  • In a small bowl, whisk together the powdered sugar, milk, and vanilla extract until a smooth, pourable glaze forms, adjusting consistency with more milk or powdered sugar if needed.
  • Drizzle the glaze evenly over the cooled blondies and allow it to set for about 15-20 minutes before slicing and serving.

Notes

Ensure your brown butter is properly cooled before adding to sugars to prevent scrambling the eggs. For best results, use firm, crisp apples like Fuji or Honeycrisp that hold their shape well when baked.