Bring the water to a boil in a stockpot. Add the sweet potatoes and taro and simmer over low heat for about 5 minutes. Add the yam and plantains and simmer for 4-5 minutes.
Moisten the rice flour with just enough water to make it sticky, then shape into small balls. Drop the rice flour balls, sago pearls and jackfruit into the liquid and continue to simmer. Sti