Mix rice flour, glutinous rice flour, sugar and salt with water. Strain twice.
Squeeze out carrot juice. Put carrot into flour mixture.
Fry spices with oil. Then, pour into flour and carrot batter. Stir continuously under medium heat until batter thickens (about 8 - 10 minutes).
Pour batter into a well-greased 9" round tin. Steam for 30 minutes.
After steaming, immediately garnish with groundnuts.
Let the cake cool down completely before serving.