01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper, allowing overhang for easy removal.
02 - Mash the diced strawberries in a small bowl with a fork until juicy but retaining some texture.
03 - Whisk together melted butter and sugar in a large bowl until combined. Add eggs and vanilla, whisking until smooth.
04 - Sift flour, cocoa powder, and salt into the bowl. Fold gently until just combined, avoiding overmixing.
05 - Fold the mashed strawberries into the batter.
06 - Transfer batter to the prepared pan, smoothing the top evenly with a spatula.
07 - Bake for 28-32 minutes until a toothpick inserted in the center emerges with moist crumbs.
08 - Allow brownies to cool fully in the pan before glazing.
09 - Puree the strawberries, then whisk with powdered sugar and lemon juice until smooth.
10 - Drizzle glaze over cooled brownies, cut into squares, and serve.