Gently drop the wontons into the boiling water, about 10-12 at a time to avoid overcrowding. Give them a gentle stir to prevent sticking.
Cook for 3-5 minutes. The wontons are done when they float to the surface and the wrapper is translucent. The filling should be cooked through (you can test one).
While the wontons cook, ladle the hot broth into the bowls over the greens. The hot broth will gently wilt them.
Use a slotted spoon to transfer the cooked wontons to the bowls.
Garnish generously with fresh sliced green onions and serve immediately.
Tips for Success
Don’t Overfill: It’s tempting to add more filling, but too much makes the wontons difficult to seal and can cause them to burst during cooking.
Keep Wrappers Covered: Wonton wrappers dry out very quickly. Keep the stack you’re not actively working with covered with a damp paper towel or plastic wrap.
Freeze for Later: Uncooked wontons freeze beautifully. Place the baking sheet with the assembled wontons in the freezer for about an hour, or until solid. Transfer the frozen wontons to a freezer-safe bag. You can cook them directly from frozen; just add a minute or two to the boiling time.
Broth Variations: For an even deeper flavor, you can start by sautéing a few sliced mushrooms or a chopped shallot in the pot before adding the broth.