Lemon brownies are soft, gooey and fudgy lemon bars with the same dense and buttery texture of classic brownies.They’re topped with a sweet and tangy lemon glaze.
In a large mixing bowl, add sugar and zest 3 large lemons directly into the sugar. Whisk the zest and sugar together to release the oils from the zest to create a wet sand like texture.
Add butter and chopped white chocolate to a microwave safe bowl. Heat the butter and white chocolate in 30 second increments, stirring in between, until the white chocolate and butter have fully melted and well combined. Add the lemon sugar directly to the white chocolate and butter mixture.
Heat the lemon sugar, butter and white chocolate in the microwave for another 30 seconds. Stir the mixture together until well combined. If the mixture is very hot, allow the mixture to cool for 5 minutes before moving on to the next step.
Once the mixture has cooled to warm, whisk in the eggs, egg yolk, lemon juice and vanilla extract until glossy. This takes about 1 minute of consistent stirring. Stir in the flour and salt until just combined.
Evenly pour the lemon and white chocolate brownie batter into the prepared pan. Bake for about 28 - 33 minutes. Cool the brownies in the pan for 30 minutes. Lift the brownies from the pan to fully cool on a cooling rack.