01 - Preheat oven to 350°F. Line an 8x8 inch square baking pan with parchment paper, leaving an overhang on two sides for easy removal.
02 - Combine the butter and dark chocolate in a heatproof bowl set over simmering water. Stir gently until completely melted and smooth, then remove from heat and let cool for 5 minutes.
03 - Add the sugar to the melted chocolate mixture, stirring until well blended. Beat in the eggs one at a time, mixing thoroughly after each addition. Stir in the vanilla extract.
04 - Sift the flour, cocoa powder, and salt directly into the wet mixture. Fold gently with a spatula until just combined — avoid overmixing to keep the brownies tender.
05 - Pour the batter into the prepared pan and smooth the top with a spatula. Bake for 20 to 25 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs clinging to it.
06 - Let the brownies cool completely in the pan on a wire rack. Do not rush this step — the brownie base must be fully set before adding the strawberry layer.
07 - Place the strawberry halves cut-side down in a single even layer across the entire surface of the cooled brownies, pressing them gently so they adhere.
08 - Melt the semi-sweet chocolate chips with coconut oil in the microwave using 30-second bursts, stirring between each interval, until glossy and smooth. Alternatively, use a double boiler.
09 - Pour the melted chocolate evenly over the strawberry layer, spreading with an offset spatula to ensure every strawberry is fully covered. Refrigerate the pan for 20 to 30 minutes until the chocolate shell is firm.
10 - Lift the brownies out of the pan using the parchment overhang. Slice into 12 squares with a sharp knife, wiping the blade clean between cuts for neat edges. Serve slightly chilled.