Preheat oven to 180°C fan forced. Grease 4 ramekins with butter and dust with cocoa powder.
Melt chocolate and butter together in a microwave or double boiler, stirring until smooth. Let cool slightly.
Whisk eggs, yolks, and sugar slowly until pale and thick. Fold in chocolate–butter mixture gently. Sift in flour and salt, folding until just combined.
Divide batter evenly among ramekins and bake for 10–12 minutes, until edges are set but centre remains soft.
Let cakes rest 1 minute, then invert onto plates. Dust with cocoa or icing sugar and serve immediately with a scoop of Connoisseur’s Classic Vanilla ice cream and fresh strawberries on the side.