01 -
Preheat oven to 175°C. Line a 20×20 cm baking pan with parchment paper, allowing an overhang for easy removal.
02 -
In a large mixing bowl, beat together softened unsalted butter and granulated sugar until pale and fluffy.
03 -
Add eggs one at a time, mixing thoroughly after each addition. Blend in lemon zest, lemon juice, and vanilla extract until fully incorporated.
04 -
Gently stir in all-purpose flour and salt, mixing just until combined and no dry streaks remain. Do not overmix.
05 -
Transfer batter into the prepared pan and smooth the surface with a spatula. Bake for 22–25 minutes, or until a toothpick inserted into the center emerges clean.
06 -
Allow the baked brownie base to cool fully in the pan set on a wire rack before glazing.
07 -
In a small bowl, whisk together powdered sugar, lemon juice, and lemon zest until smooth and combined.
08 -
Spread the glaze evenly over the cooled brownies. Refrigerate for 15 minutes to set the glaze, then slice into bars.