These delightfully unique lemon brownies have the same soft and fudgy goodness of classic blondies but with the zippy taste of lemon bars. Top them with a thick lemon glaze for the ultimate bright, sweet and delicious treat!
Preheat the oven to 350°F. Set out a 9 x 13 inch baking dish. Line the baking dish with parchment paper, so you can easily lift the whole sheet of lemon brownies out of the pan once they are baked.
Set out a large mixing bowl. Combine the flour, sugar, cornstarch, and salt. Whisk well. Then vigorously whisk in the melted butter and eggs, until smooth.
Add the lemon zest, lemon juice, lemon extract, and vanilla extract, whisk again until the mixture is very smooth.
Scoop the lemon brownie batter into the prepared pan. Smooth it out into an even layer. Bake for approximately 15 minutes, until a toothpick inserted in the center comes out mostly clean. *You do not want to overbake these bars; the fudgy texture is what makes them feel like brownies.
Allow the lemon brownies to cool.
Set out a clean bowl for the glaze, and whisk together the powdered sugar and additional lemon juice. Once smooth, pour the glaze over the top of the lemon brownies and smooth it out with a rubber spatula. Allow the brownies to continue cooling to room temperature as the glaze sets.
Once the glaze is fully set, lift the entire sheet of lemon brownies out of the pan by the edges of the parchment paper. Cut into squares and serve!
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Notes
The best way to store brownies is in an airtight container at room temperature. They'll keep well for 3-4 days on the counter, or up to 5-6 days in the refrigerator.To Freeze: To keep them fresh, I suggest first wrapping each brownie individually in plastic wrap before storing them all together in an airtight ziploc freezer bag. Freeze the lemon brownie bars for up to 2 months, then let them thaw at room temperature for 30 minutes or so before eating.