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Ultimate Fudgy Lemon Brownies with Zesty Lemon Glaze

Close-up of a fudgy Lemon Brownies square topped with thick white glaze and a lemon slice.

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Make these fudgy, moist lemon brownies, also known as lemon blondies, for a bright, tangy dessert. This recipe includes a simple, zesty lemon glaze.

Ingredients

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  • 1 cup (2 sticks) unsalted butter, melted
  • 2 cups granulated sugar
  • 4 large eggs
  • 1 tablespoon lemon zest
  • 1/4 cup fresh lemon juice
  • 1 teaspoon vanilla extract
  • 1 3/4 cups all-purpose flour
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon salt
  • For the Glaze: 1 1/2 cups powdered sugar
  • For the Glaze: 3 tablespoons fresh lemon juice

Instructions

  1. Preheat your oven to 350°F (175°C). Line a 9×13 inch baking pan with parchment paper, leaving an overhang on the sides for easy removal. Lightly grease the paper.
  2. In a large bowl, whisk the melted butter and granulated sugar together until combined.
  3. Whisk in the eggs one at a time until the mixture is smooth.
  4. Stir in the lemon zest, lemon juice, and vanilla extract.
  5. In a separate medium bowl, whisk together the flour, baking powder, and salt.
  6. Gradually add the dry ingredients to the wet ingredients, mixing only until just combined. Do not overmix.
  7. Spread the batter evenly into the prepared baking pan.
  8. Bake for 25 to 30 minutes, or until the edges are set and a toothpick inserted near the center comes out with moist crumbs attached. Do not overbake to keep them fudgy.
  9. Let the brownies cool completely in the pan on a wire rack.
  10. Prepare the glaze: Whisk the powdered sugar and 3 tablespoons of lemon juice together until smooth. Add more powdered sugar or lemon juice, one teaspoon at a time, to reach a thick but pourable consistency.
  11. Once the brownies are cool, drizzle the glaze evenly over the top. Let the glaze set before cutting into squares.

Notes

  • For extra tang, you can add 1 teaspoon of lemon extract to the batter along with the vanilla.
  • To achieve a fudgier texture, slightly underbake them by about 2 minutes.
  • If you prefer a thicker brownie, use an 8×8 inch pan instead, and adjust the baking time to 35-40 minutes.

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