You can easily make cream puff pastry in the microwave. Just mix constantly, and they will expand nicely, without fail.
I had some leftover strawberry cream, and decided to use it in cream puffs. I referred to a microwave recipe when I made this.
In Step 5, keep an eye on it, and add the egg a little at a time. In Step 6, if the mixture is too firm or too runny, the puffs won't expand.
Enjoy Japanese food around the world.