01 - Preheat oven to 350°F. Grease and line an 8x8-inch baking pan with parchment paper.
02 - In a large bowl, combine melted butter, granulated sugar, and strawberry puree. Whisk until fully incorporated.
03 - Blend in eggs and vanilla extract, whisking until the mixture is smooth.
04 - In a separate bowl, whisk together all-purpose flour, baking powder, and salt.
05 - Gently fold the dry ingredients into the wet mixture until just combined. Avoid over-mixing.
06 - Pour the batter into the prepared pan. Use a spatula to smooth the surface evenly.
07 - Bake for 22 to 25 minutes, or until the edges are set and a toothpick inserted in the center comes out with a few moist crumbs.
08 - Allow to cool completely in the pan before glazing.
09 - In a bowl, whisk together powdered sugar, strawberry puree, and lemon juice until smooth and pourable.
10 - Spread the glaze evenly over cooled brownies. Let set for 15 minutes, then cut into squares and serve.