MAKE THE GLUTINOUS PASTE
Dilute the rice flour in water. Heat and bring to boil while stirring, for about 5 minutes. Lower the heat.
When you see it bubbling, add sugar. Cook for a few more minutes until it becomes translucent. Let it cool completely.
Tip: To cool faster, but the pot in a pan half-filled with water; just make sure that the pot is taller than the pan.