I followed this recipe:
Bai Tang Gao also known as Lun Jiao Gao (伦教糕) is a popular dessert in China, especially in Canton area.
In this recipe, the following ingredients are required:
Rice flour 150g
water 300ml (2tbsp water to mix with dry yeast)
90g sugar (1 tsp sugar to mix with dry yeast)
3/4 tsp yeast
3/4 tsp baking powder
1/2 tsp vegetable oil
1, Add sugar into a sauce pan. Pour into 150 ml water. Turn to low heat and stir at the same time till all the sugar dissolves.
2, Add rice flour with the rest 150 ml water. Stir till no lumps.
3, Add rice flour water into sugar water. Turn to low heat and stir till fully mixed. Then turn off the heat and let it cool down.
4, In a small bowl, mix 1 tsp sugar, 2 tbsp water and 3/4 dry yeast. Let it rest to foam up.
5, When rice flour water is completely cool and yeast foams up. Add yeast water into rice flour water. Also add in baking powder and oil. Mix well.
6. Put it in a warm place, cover it with plastic wrap and towel. Let it ferment for 5 hrs. Original recipe needs 6 hrs. But it is very hot here in Singapore. So I think 5 hrs should be long enough.
7. Brush oil to steaming pan. Pour everything into it. Steam over medium heat for 20-25 mins. Check with toothpick.
This is how it looks after steaming:
Cool down and cut into slices.