Chocolate mousse soufflés

Chocolate custard

• 50 g dark chocolate (70% cocoa), broken into pieces
• 1 tbsp cornflour
• 2 egg yolks
• 1 egg
• 200 g milk
• 1 pinch sea salt

Chocolate soufflés

• butter, for greasing
• 3 tbsp caster sugar
• 2 egg whites
• icing sugar, for dusting