Lemon Blondies are a delicious lemony treat that has the flavor of a lemon bar with the texture of a blondie. Topped with a simple lemon glaze, these blondies are the perfect lemon dessert!
Preheat oven to 350 degrees. Spray a 9 x 9 inch baking pan with nonstick cooking spray and line with parchment paper; set aside.
In a large bowl, use a handheld mixer to beat together the butter, sugar, and lemon zest until light and fluffy; about 2 minutes. Add in the eggs, one at a time, beating after each egg addition. Mix in the ¼ cup lemon juice, vanilla, and salt until well combined (mixture may look a bit lumpy). Fold in the flour and mix until well combined.
Pour the batter into the prepared baking pan. Bake on the center rack in the preheated oven for about 30-35 minutes, or until a toothpick inserted into the center of the blondie comes out clean. Remove from oven and cool on cooling rack for 20 minutes.
To make the lemon glaze, in a small bowl, whisk together the powdered sugar and lemon juice starting with 2 tablespoons then adding more depending on the consistency you want. Pour the glaze over the blondies in the pan and let sit until completely cooled and the glaze has set. You can speed this up by putting them in the refrigerator.
Carefully lift the blondies out of the pan using the parchment paper. Cut into squares.
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Notes
Make sure you are using room temperature butter for this recipe.
Use organic lemons if possible since you are using the zest from the lemon.
Be careful not to over bake the blondies. Bake just until a toothpick inserted in the middle of the blondies comes out clean, no longer.
If you love lemony flavor, add a tablespoon of lemon zest to the glaze.
Store these in an airtight container in the refrigerator for up to a week or freeze for up to a month.