01 - Preheat oven to 350°F. Grease and line an 8x8-inch baking pan with parchment paper.
02 - In a large bowl, whisk together melted butter, granulated sugar, and strawberry puree until thoroughly blended.
03 - Incorporate eggs and vanilla extract into the wet mixture, whisking until smooth.
04 - In a separate bowl, whisk flour, baking powder, and salt until evenly combined.
05 - Fold dry ingredients into the wet mixture until just combined. Avoid over-mixing.
06 - Pour batter into the prepared pan and smooth the surface 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 - Remove from oven and allow to cool completely in the pan.
09 - In a bowl, whisk powdered sugar, strawberry puree, and lemon juice until the glaze is smooth and pourable.
10 - Spread glaze evenly over cooled brownies. Allow glaze to set for 15 minutes, slice into squares, and serve.