Pork Potstickers

Ingredients

• 2 medium carrots, finely chopped
• 1 small onion, finely chopped
• 1/2 cup water chestnuts, finely chopped
• 1/3 cup fresh chives, minced, plus more, to taste, for garnish
• 1 large egg white, lightly beaten
• 3 tablespoons reduced-sodium soy sauce, plus more, to taste, for dipping
• 1/2 teaspoon pepper
• 1 pound ground pork
• 60 potsticker or gyoza wrappers
• 3 tablespoons canola oil, divided
• 1 cup chicken broth, divided