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Ultimate Fudgy Lemon Brownies with Zesty Lemon Glaze

Close-up of a fudgy, dark chocolate Lemon Brownies square topped with a white glaze and bright yellow lemon zest.

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You make these bright, flavorful lemon brownies without spending a lot of time in the kitchen. This recipe balances rich, fudgy texture with a sweet and tangy citrus punch, topped with a simple lemon glaze.

Ingredients

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

Instructions

  1. Preheat your oven to 350°F (175°C). Line an 8×8 inch baking pan with parchment paper, leaving an overhang for easy removal.
  2. In a large bowl, whisk the melted butter and granulated sugar together until combined.
  3. Beat in the eggs one at a time until fully incorporated. Stir in the vanilla extract and lemon zest.
  4. In a separate bowl, whisk together the flour, cocoa powder, and salt.
  5. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Do not overmix.
  6. Pour half of the batter into the prepared pan. Drizzle the fresh lemon juice evenly over the batter. Pour the remaining batter over the top.
  7. Bake for 30 to 35 minutes. A toothpick inserted near the center should come out with moist crumbs attached, not wet batter.
  8. Let the brownies cool completely in the pan on a wire rack. This step is key for fudgy texture.
  9. Prepare the glaze: Whisk the powdered sugar and 1 tablespoon of lemon juice until smooth. Add more lemon juice, a few drops at a time, until you reach a thick but pourable consistency.
  10. Once the brownies are cool, drizzle the glaze over the top. Let the glaze set before cutting into squares.

Notes

  • For extra zesty flavor, use a microplane to get fine lemon zest.
  • Cooling completely before glazing prevents the glaze from melting into the brownie.
  • You can substitute half the flour with a gluten-free all-purpose blend if you need gluten free lemon brownies.

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