Grease 4 ramekins generously with softened butter

Dust with cocoa powder and tap out excess

Melt chocolate and butter together until completely smooth

Cool for 5 minutes

Whisk eggs egg yolks and sugar until pale and slightly thickened

Pour chocolate mixture into egg mixture and whisk to combine

Add flour vanilla and salt and fold gently until just combined

Divide batter evenly between prepared ramekins

Preheat air fryer to 375°F (190°C) for 3 minutes

Place ramekins in air fryer basket

Cook for exactly 10 minutes until edges are set

Center should still jiggle slightly when shaken

Let rest for 1 minute then run knife around edges

Invert onto serving plates immediately

Dust with powdered sugar and serve with vanilla ice cream and raspberries