Step 1

1) Heat the vinegar to almost boiling in a small saucepan. Add the sugar and salt, and boil slowly until all is dissolved. Remove from the heat and allow the mixture to cool to room temperature.

2) Add the cucumber, shallots, chili, and coriander leaves (cilantro) to the sweet and sour mixture. Let it sit at room temperature for about 15 minutes, then it's ready.

Note: I like to serve this really cold, but served at room temperature is also fine.