Step 2

Make the sauce: heat the light cream and 1oz sugar until boiling. Remove from heat, stir in the 3 1/2oz dark chocolate and 1oz butter until melted and smooth. Keep warm.

Step 3

Brush 6 × 150ml ramekins with melted butter. Sprinkle with the 1 3/4oz superfine sugar, turning each ramekin to coat the inside, then tip out any excess.

Step 4

Melt the 6 1/4oz dark chocolate with the 2 tbsp heavy cream in a bowl set over a pan of simmering water. Remove from heat and cool slightly, then stir in the egg yolks.

Step 5

Whisk the egg whites until they hold their shape, then add the remaining superfine sugar a tablespoon at a time, whisking back to the same consistency after each addition.

Step 6

Stir a spoonful of the egg whites into the chocolate mixture to loosen it, then gently fold in the rest.

Step 7

Working quickly, fill the ramekins with the soufflé mixture, wipe the rims clean and run your thumb around the inside edges. Turn the oven down to 400°F. Place the ramekins on the hot baking sheet and bake for 8–10 minutes until risen with a slight wobble.

Step 8

Dust with powdered sugar. Scoop a small hole in the top of each soufflé, pour in some hot chocolate sauce and replace the 'lids'. Serve immediately.