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