Avocado Mousse with Lime

Directions

1. 1
   Pit and peel the avocados and scoop the flesh into a blender or food processor.
2. 2
   Add the lime zest and juice, and process until really smooth.
3. 3
   Add the cream cheese and blend until completely combined.
4. 4
   Season with salt and pepper.
5. 5
   Transfer to a bowl.
6. 6
   Sprinkle the gelatin over 2 tbsp of water in a small heatproof bowl.
7. 7
   Let stand about 5 minutes until the mixture looks spongy.
8. 8
   Place the bowl in a skillet of barely simmering water and stir constantly until the gelatin dissolves.
9. 9
   Drizzle the dissolved gelatin over the avocado mixture, and stir well.
10. 10
    If using, beat the egg white until soft peaks form.
11. 11
    Fold the egg white into the avocado mixture.
12. 12
    Spoon into four 4oz (100ml) ramekins.
13. 13
    Cover with plastic wrap and refrigerate 2 hours, or until chilled and set.
14. 14
    Serve chilled.