Steam the potstickers or dumplings according to the package instructions. Once cooked, transfer them to a large bowl and toss gently with a teaspoon of sesame oil to prevent sticking.
In a separate bowl, combine Tamari, balsamic vinegar, and maple syrup to create a savory-sweet dressing. Drizzle this mixture over the steamed dumplings in the large bowl and carefully toss them until they are thoroughly coated.
Cut the heirloom tomatoes into wedges and thinly slice both the English cucumber and scallions. Add these fresh ingredients along with the optional red chili pepper into the bowl containing dumplings.
Tear fresh basil leaves over the top of your mixed ingredients for added flavor and fragrance. Sprinkle toasted sesame seeds or crispy fried onions on top as a delightful garnish before serving.
Serve this refreshing Potsticker Salad at room temperature or chilled, depending on your preference. For an extra kick, offer garlic chili sauce on the side.