Step 1: Preheat and Prepare the Pan
Preheat your oven to 350°F (175°C). Line a 9-inch square baking pan with parchment paper, leaving extra on the sides for easy lifting. Lightly grease the parchment.

Step 2: Make the Blondie Batter
In a large bowl, cream the butter and sugar together until fluffy—about 2–3 minutes. Add the egg and beat until fully incorporated.

Add the lemon juice. It may not fully mix into the batter at this point, and that’s okay.

In a separate bowl, whisk together the flour, baking powder, and salt. Add this to the wet ingredients and stir until just combined. The batter will be thick.

Gently fold in the diced strawberries using a spatula. Be careful not to mash them or overmix.

Step 3: Bake the Blondies
Spread the batter into the prepared pan. It will be thick, so take your time smoothing it into the corners.

Bake for 30–35 minutes, or until the edges are golden and a toothpick inserted in the center comes out with moist crumbs (not wet batter).

Let the blondies cool completely in the pan on a wire rack.

Step 4: Make the Glaze
Trim and puree two large strawberries. Strain the puree through a sieve to remove seeds until you have about 1 tablespoon of smooth puree.

In a small bowl, whisk together the sifted powdered sugar, strawberry puree, and enough lemon juice to reach a spreadable consistency.

Step 5: Glaze and Serve
Lift the blondies out of the pan using the parchment paper. Spread the glaze evenly over the cooled blondies.

Let the glaze set for about 30 minutes before slicing into squares. Serve and enjoy!