Melt the chocolate and butter

• Melt the chopped dark chocolate with the butter in a saucepan over low heat.
• Stir until smooth, then remove from the heat and let cool slightly.

Whisk the eggs and sugar

• Whisk the eggs with the sugar until pale and slightly thickened.

Make the batter

• Pour the melted chocolate mixture into the eggs and whisk to combine.
• Fold in the sifted flour, cocoa powder and salt until just combined.

Bake the brownies

• Preheat the oven to 180 °C.
• Pour the batter into a lined baking dish and spread evenly.
• Bake until the top is set and a skewer comes out with moist crumbs.

Cool and cut

• Let the brownies cool completely in the dish.
• Cut into squares and serve.