Juice the oranges. In a mixing bowl, combine all the ingredients and beat well until fully blended. Pour the mixture into caramel-coated ramekins.

Place the ramekins in the air fryer and cook at 265°F (130°C) for 13 minutes. Check doneness by inserting a toothpick—if it comes out clean, they're ready. Remove and let cool.

For best flavor and texture, refrigerate the flan overnight so it is very cold and the flavor develops. The result is spectacular.