1. 1. Preheat the oven to 425°F (220°C).

2. 2. Grease ramekins with butter and dust with cocoa powder.

3. 3. Melt chocolate and butter in a bowl over a double boiler until smooth.

4. 4. Whisk eggs, egg yolks, and sugar until light and fluffy.

5. 5. Fold in the melted chocolate mixture and flour until well combined.

6. 6. Divide the batter into the prepared ramekins.

7. 7. Bake for 12-14 minutes until the edges are set but the center is still gooey.

8. 8. Serve warm with a dusting of powdered sugar and a scoop of vanilla ice cream.