My mom taught me how to fold paper cranes when I was a kid, and it's basically muscle memory for me, but if you're not familiar with how to fold a crane you'll definitely want to practice with paper first. One thing I realized as I was doing research for this post is that the way my mom taught me how to fold a paper crane is different than the most popular way on the internet. In fact, I can't seem to find a single tutorial showing the method my mom taught me! It's a very disorienting feeling to realize that something that you thought everyone else knew is actually just something only your family knows.
Anyways, for science, I tried both ways with a wonton skin, and there doesn't seem to be too much of a difference. I think the hollow space in the crane's body may be a tad larger using my mom's method, and the tail and head are a bit fatter so it's a little easier to have a defined head. Both honestly, I'm not sure those differences are a big enough of a deal to learn a new way to fold a crane, especially since it's hard enough folding one with a wonton skin.
You will want to get the freshest, most pliable wonton skins you can find, and the thinner the better. The ones I used weren't a perfect square, but you can still get a pretty decent looking crane. Also, instead of making perfect creases like you'd usually do with paper, you want to try not to press down too hard on any folds so that the wonton skin doesn't break.
After I finished folding the cranes, I microwaved them for 8-10 seconds, just enough to make them a little stiffer, but not totally cooked. Basically I watched them as they microwaved and pulled them out as soon as they started to distort. At that point, I was still able to manipulate them back into the desired shape.
Then I whipped up some softened cream cheese with some chopped scallions and a pinch or two of salt. To fill the cranes, I used a piping bag with a no. 12 round tip. A slightly smaller tip would probably have been a little better, but you don't want to use a tiny one or else the scallions might get stuck in the tip.
I deep fried the crane rangoons in 375 F oil until they were golden brown. After some trial and error, it seemed like frying them upside down was the best way to get them to cook as evenly as possible. When they were done, I let them drain on a paper towel-lined plate.