01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper, leaving an overhang for easy removal.
02 - In a large bowl, whisk together melted butter, granulated sugar, and brown sugar until smooth. Add eggs, vanilla extract, lemon zest, and lemon juice. Whisk until fully combined.
03 - Stir in flour, baking powder, and salt until just incorporated. Do not overmix.
04 - Gently fold in diced strawberries.
05 - Spread the batter evenly in the prepared pan. Bake for 28-32 minutes, or until the top is set and a toothpick inserted in the center comes out with a few moist crumbs.
06 - Cool completely in the pan on a wire rack.
07 - For the glaze, whisk powdered sugar with lemon juice until smooth and pourable.
08 - Drizzle glaze evenly over cooled blondies. Let set for 15 minutes, then cut into squares and serve.