Add the brown sugar, white sugar, and water in a clean bowl, then stir it until it's melted.
Add the yeast and the powder to the mixture and then start to stir.
Go on to add the eggs to the mixture and then stir it with the whisker until it gets nice smooth.
Now take the plastic wrap and then cover the bowl. Let the mixture rest for as long as you would like. It can rest to 12 hours but even just 1 hour is enough, so it depends on how you want it.
Now add the baking powder to the mixture, then stir it. Also, you should add corn oil to the mixture to make it delicious.
Again, you are going to add the egg extract and then stir it to perfection.
Take your mold and then lightly oil it again. Finally, pour the batter into the mold.
Add some water to the steamer and allow it to heat up. Set the mold in the steamer and allow it to cook the cake. This will take about thirty minutes, and the ma lai gao is ready for you to use.
Serve hot with your favorite drink.