Homemade water chestnut and sugar cane drink

300g Sugar cane
12 Water chestnut
2 Ltr Water
Rock sugar

Bring water to boil over high heat. Add sugar cane and water chestnuts into the boiling water. Reduce heat to low fire to simmer for 20 minutes. Add rock sugar and let it slowly dissolve, simmer for another 10 – 15 minutes. Heat off and serve hot, or chilled.