In a food processor, mix rice, water, sugar, and yeast, to combine well. Pour mixture into a bowl, then stir in rice flour until completely combined. Mixture will be thickened.
Cover the bowl and let rest for 2-3 H. Yep, you read right. 2 to 3 hours. Batter will be even more thicker.
Divide into two, flavor with each flavoring
Preheat steamer and brush mold (you can use whatever mold, individuals or bigger molds, whatever you have) with oil.
Spoon batter into mold and steam for 15-20 minutes.
Meanwhile, should you have another steamer, steam the coconut, mixed with salt and add a knotted pandan. You can also do this in microwave, but add water a little, to dampen the coconut. If you don’t have another steamer nor microwave, steam the coconut first, while batter is rising.
Enjoy warm is the best, but you can always microwave the cakes should there be leftover, for 40 seconds!