Method
Preparation
Preheat the oven to 425°F (220°C).
Grease four 6-ounce ramekins generously with unsalted butter and dust with cocoa powder or flour.
Melt the butter and chocolate together in a microwave-safe bowl, stirring until smooth.
Whisk together the eggs, egg yolks, and granulated sugar until thick and pale.
Combine the melted chocolate mixture with the egg mixture and stir until smooth.
Fold in the flour, vanilla extract, and a pinch of salt carefully.
Divide the batter evenly among the prepared ramekins, filling each about 3/4 full.
Bake in the preheated oven for 10-12 minutes.
Cool the cakes for about 1 minute, then loosen the edges and invert onto plates.
Dust with powdered sugar and serve warm, optionally with vanilla ice cream.
Notes
Ensure your eggs are at room temperature for better blending. Avoid overmixing to maintain a gooey center.