I have found out a few days ago how to prepare popcorn in the microwave.
Not those prepacked microwave popcorn bags with their usually horrible flavoring but with corn like you can do in a pot or frying pan.
Use a glass pot or a ceramic pot, most plastic microwave dishes will get destroyed by the hot sugar. Cover the ground losely with corn, app. 50g depending on size. Add water until the corn is nearly covered. Add a tablespoon of sugar and stir a little.
Put the pot into the microwave and cover it with a microwave cover, one of those with a hole in the middle.
Run the microwave with full power. First all the water evaporates and the sugar will nicely caramelize, giving the popcorn a really nice flavor. Not too sweet as a lot of the sugar ends at the bottom of the pot.
It tasts surprisingly good exactly the way we get popcorn at the cinema or at carnivals from those popcorn stands.
It is difficult to give a precise time as it depends on the precise amount of water, as all the water needs to evaporate first. Just observe when the popping starts and when the pops get rare it is done. Stop the microwave so the corn does not get burned.
Works with half a teaspoon salt and some butter too if you don't want it sweet.