Video: You wouldn't know it when you bite into one of these juicy packages of happiness, but making wontons is a very technical process. Not only that, there are multiple approaches to folding wontons. This video shows you the basic "scrunch" method, plus four more ways to impress your family or dinner guests.
The video assumes that you have a basic recipe and square-shaped wonton wrappers ready. Keep a small bowl of water handy for dabbing the sides of the wrapper to hold the wonton together. You'll notice that in each demonstration she doesn't add a ton of filling in the wonton. Typically, you only want a modest spoonful of filling to securely seal it in without it bursting out later in the cooking process. If you want to pan-fry your wontons, I highly recommend going with the "triangle" method for more even cooking.
The most efficient and common method is her "ruffled purse" wonton, which is simply scrunching the ends of the wonton wrapper at the top. If you care about presentation, especially for special occasions (Lunar New Year, perhaps?), check out the rest of the video.
5 Ways to Wrap Wontons [Hot Thai Kitchen]