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Best Lemon Brownies with Tangy Lemon Glaze

A close-up of a square slice of fudgy lemon brownies topped with white glaze and bright yellow lemon zest.

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Make these bright, fudgy lemon brownies for a refreshing twist on classic dessert bars. This easy recipe delivers intense citrus flavor and a moist texture, topped with a zesty lemon glaze.

Ingredients

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  • 1 cup unsalted butter, melted
  • 2 cups granulated sugar
  • 4 large eggs
  • 1 tablespoon lemon zest (from about 2 lemons)
  • 1/4 cup fresh lemon juice
  • 1 teaspoon vanilla extract
  • 1 1/2 cups all-purpose flour
  • 1/2 teaspoon salt
  • 1/4 teaspoon baking powder
  • 1/2 cup powdered sugar (for glaze)
  • 2 tablespoons fresh lemon juice (for glaze)

Instructions

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

Notes

  • For an extra bright lemon flavor, use fresh lemon juice only; bottled juice changes the taste.
  • If you prefer chewy lemon bars instead of fudgy brownies, slightly increase the flour to 1 3/4 cups.
  • These lemon brownies freeze well once cooled and before glazing.

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