01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper, leaving an overhang for easy removal.
02 - In a medium bowl, whisk together melted butter and sugar until smooth. Add eggs and vanilla, mixing until well combined.
03 - Sift in cocoa powder, flour, salt, and baking powder. Stir until just combined—do not overmix.
04 - Pour batter into the prepared pan and smooth the top. Bake for 25–30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs. Cool completely in the pan.
05 - Once brownies are cool, arrange the strawberry halves or slices evenly over the brownie layer.
06 - Heat heavy cream in a small saucepan until just simmering. Pour over chocolate chips in a heatproof bowl. Let sit for 2 minutes, then add butter and stir until smooth and glossy.
07 - Pour ganache over strawberries, spreading gently to cover. Chill brownies in the refrigerator for at least 1 hour, or until set.
08 - Lift brownies from the pan using parchment overhang. Slice into squares with a sharp knife, wiping blade clean between cuts for neat edges.