Mustard Cabbage Soup Recipe

1 tablespoon vegetable oil

½ pound boneless chicken breasts

thinly sliced

¼ cup chopped onion

1 tablespoon grated ginger

2 cloves garlic

minced

8 cups chicken broth

or more to taste

12 frozen pot stickers

6 cups chopped mustard cabbage (mustard leaves)

2 (3 ounce) packages ramen noodles (without flavor packet)

1 teaspoon soy sauce

or to taste

salt and ground black pepper to taste