Instructions

1. Using a vegetable peeler, cut the cucumber into long thin strips.
2. Finely chop the red onion and put it in a small bowl. Pour boiling water over it, rest for 5 minutes, then drain.
3. Meanwhile, remove the seeds and veins from the chilli then finely chop the flesh.
4. Scatter the chopped onion &chilli over the cucumber strips, add the sugar and lime juice then the fish sauce. Mix gently.
5. Let it rest for about 10 minutes before serving.