Stir ingredient A until the sugar dissolves and become a batter, filter it. Divide equally into 5 parts, of which 2 parts retain the white color, and the other 3 parts are respectively added with pink, red and green colouring.
Put a 20cm/ 8 inch diameter and 5cm/ 2 inch high steamer plate into the steamer and steam for 2 minutes, pour � of the white mixture, and steam for 2 minutes on medium heat until cooked. Use a fork to make thin lines on the cake, pour in � red mixture, and steam over medium heat for 2 minutes until cooked.
Pour the pink, white and green mixture in the same way as above and steam.
Finally, pour the red mixture and steam for 5-6 minutes until cooked.
Take it out and let it cool before cutting into pieces!