Lemon Blondies Recipe
This Lemon Blondies Recipe combines fresh lemon juice, zest, and a delicate citrus glaze for a soft, rich, and chewy dessert that's perfect for spring or summer. Simple to prepare and bursting with bright, tangy flavor in every bite.
12 Servings
Ingredients
For the Blondies:
- ½ cup unsalted butter melted and cooled
- ¾ cup granulated sugar
- 2 large eggs at room temperature
- 2 tablespoons lemon zest
- ¼ cup freshly squeezed lemon juice
- 2 teaspoons vanilla extract
- ½ teaspoon salt
- 1½ cups all-purpose flour
- 1 teaspoon cornstarch
- ¼ teaspoon baking powder
For the Lemon Glaze:
- 1 cup powdered sugar
- 2 tablespoons freshly squeezed lemon juice
- 1 teaspoon lemon zest optional
Instructions
Preheat the Oven:
- Preheat the oven to 350°F (175°C). Line an 8×8-inch baking dish with parchment paper, allowing a slight overhang on the sides to aid in lifting the bars later. Set aside.
Prepare the Blondie Batter:
- In a large mixing bowl, whisk together the melted butter and granulated sugar until the mixture is fully combined. Add the eggs, lemon zest, lemon juice, vanilla extract, and salt. Continue whisking until the mixture becomes smooth.
Incorporate Dry Ingredients:
- Sift the flour, cornstarch, and baking powder directly into the wet mixture. Using a silicone spatula or wooden spoon, stir gently until all ingredients are just combined. Take care not to overmix the batter, as this may result in a tougher texture.
Bake the Blondies:
- Transfer the batter to the prepared baking pan and spread it into an even layer. Bake for approximately 18–22 minutes, or until the edges are lightly golden and a toothpick inserted near the center comes out with a few moist crumbs (but no wet batter). Allow the blondies to cool completely in the pan set over a wire rack.
Prepare the Glaze:
- While the blondies are cooling, whisk the powdered sugar, lemon juice, and optional zest in a small bowl until a smooth, pourable glaze forms.
Glaze and Serve:
- Once the blondies are completely cool, use the parchment paper overhang to lift them from the pan. Place on a cutting board and drizzle the glaze evenly over the top. Allow the glaze to set for 15–30 minutes before slicing into squares and serving.
Notes
To prepare this Lemon Blondies Recipe gluten-free, substitute the all-purpose flour with a 1:1 gluten-free baking flour blend that contains xanthan gum or a similar binding agent. Brands like Cup4Cup or King Arthur’s Gluten-Free Measure for Measure Flour work particularly well in this recipe. Make no other changes to the method or measurements. Ensure your baking powder and powdered sugar are also certified gluten-free, as some may contain additives derived from gluten-containing sources.