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Ultimate Fudgy Lemon Brownies with Zesty Lemon Glaze

Close-up of a fudgy Lemon Brownies square topped with white icing and a bright yellow lemon glaze.

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Make these bright, fudgy lemon brownies that balance sweetness with a sharp citrus punch. This recipe delivers moist, chewy squares topped with a simple, zesty lemon glaze, perfect for spring or summer baking.

Ingredients

Scale
  • 1 cup (2 sticks) 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 1/4 cups all-purpose flour
  • 1/2 teaspoon salt
  • 1/2 cup white chocolate chips (optional)
  • 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 an 8×8 inch baking pan with parchment paper, leaving an overhang on two sides for easy removal. Lightly grease the paper.
  2. In a large bowl, whisk the melted butter and granulated sugar together until fully 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 until incorporated.
  5. In a separate small bowl, whisk together the flour and salt.
  6. Gradually add the dry ingredients to the wet ingredients, mixing only until just combined. Do not overmix. Fold in the white chocolate chips, if using.
  7. Spread the batter evenly into the prepared pan.
  8. Bake for 30 to 35 minutes. The edges should look set, and a toothpick inserted near the center should come out with moist crumbs attached, not wet batter.
  9. Let the brownies cool completely in the pan on a wire rack. Cooling helps achieve the fudgy texture.
  10. Prepare the glaze: In a small bowl, whisk together the powdered sugar and 3 tablespoons of lemon juice 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 completely cool, drizzle the zesty lemon glaze evenly over the top. Let the glaze set before cutting into squares.

Notes

  • For extra bright flavor, use fresh lemon juice only; bottled juice changes the taste.
  • To get the fudgy texture, avoid overbaking. The center should still be slightly soft when removed from the oven.
  • You can easily double this recipe and bake it in a 9×13 inch pan, increasing the baking time by about 5 to 10 minutes.

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