You first have to dissolve the sugar in water.
After cooling the liquid you add the mochiko. I tried to do an action shot for you for a change. . . not too easy trying to pour with one hand and keeping the camera steady while shooting with the other hand. I should bust out the tripod but I'm too lazy.
Another action shot. After blending everything together you pour the batter into a microwave safe bowl and microwave. And here's da gau. My microwave must be strong or something 'cause I had to adjust the time to 5 minutes at high, 5 minutes at 75% and 5 minutes at 50%. It still came out kinda chewy but that's how I like it anyway.