Growing up in an Japanese household, I love my sticky white rice. Many times, going on a trip means leaving sticky white rice behind, but I received a Tupperware Microwave Rice Cooker. I was skeptical at first, but after experimenting with it on a long business trip, I can make passable rice in the microwave.
The hotel I was staying in had a 1200W Microwave. For this microwave, I found 1 cup of rice, 1.5 cups of water, and 15 minutes on 50% power seemed to be just about right. For smaller, less powerful microwaves, you’ll need to increase the cooking time or power level.
My initial try was 1 cup of rice, 2 cups of water, and 5 minutes at 100% power. There was still a lot of water sloshing around, so I poured some out and put it back in for 2 more minutes. The remaining water boiled over and ended up leaving my rice dry.