Hot chocolate soufflé

INGREDIENTS

• 25g unsalted butter , for greasing
• finely grated chocolate
• 2 tbsp plain flour
• 2 tsp caster sugar
• ½ tsp cornflour
• 1 medium egg yolk
• 1 medium whole egg
• 4 tbsp milk
• 1 tbsp double cream
• 25g good-quality dark chocolate preferably 70% cocoa solids, broken in pieces
• 1 tbsp cocoa powder
• 6 medium egg whites
• 85g caster sugar
• single cream or ice cream, to serve
• 4 tbsp double cream
• 50g good-quality dark chocolate preferably 70% cocoa solids, broken into pieces
• 1 tbsp cocoa