1. grate 2 cucumbers in a bowl
2. add
   • 1.5 cup desiccated coconut
   • 2 cups rice rawa (coarsely ground rice)
   • 2-3 spoons sugar
   • 1.5 spoons salt
3. mix by hand and leave to soak for 10 minutes (rawa will soak in cucumber's water)
4. [optional] put haldi (turmeric) leaf pieces in the idli pots
5. fill pots with idli mix
6. prepare steamer:
   1. put about 2cm of water (not too much otherwise will flow into first row of idli pots)
   2. heat on full hob heat until steaming
   3. reduce to medium (6.5) for cooking
7. put in steamer for 20-25 minutes

See also coconut chutney to go with the idli, here.

Sweet Cucumber Idli

With some of the mixture you can also make sweet cucumber idli

1. prepare/keep some of the same mixture
2. add 1 piece (~1/2 cup) of jaggery (unrefined sugar) and mash in with a pestle
3. put it lower down in the steamer, since it takes longer to cook than the normal mixture