Mix ground pork, soy sauce, sesame oil, minced ginger, garlic, and white pepper in a bowl.

Place 1 teaspoon of filling in the center of each wonton wrapper. Brush edges with egg and seal.

Bring chicken broth, water, and ginger slices to a boil in a large pot.

Reduce heat and simmer for 5–10 minutes to infuse flavor.

Drop wontons into the simmering broth and cook 5–7 minutes until floating.

Add optional vegetables during the last few minutes of cooking.

Serve hot and garnish with green onions, sesame seeds, or chili oil.