Miso, typically made from fermented soybeans, is a powerful flavoring in soups. Its rich, salty flavor is highlighted best in miso soup, this hearty version of which is made with a generous amount of ginger and garlic.
Heat oil in a large pot over medium heat. Add yellow onion, ginger and garlic and cook until onions are translucent, about 5 minutes. Add broth, bok choy, carrots and tofu and bring to a boil. Reduce heat and simmer until vegetables are tender, 5 to 10 minutes more. Remove soup from heat.
Ladle about 1 cup of the hot broth into a small bowl. Add miso and stir until dissolved, then transfer mixture back to pot and stir well. Stir in vinegar, ladle soup into bowls and garnish with green onions.
Per Serving:120 calories (45 from fat), 5g total fat, 1g saturated fat, 800mg sodium, 9g carbohydrates, (2 g dietary fiber, 3g sugar), 8g protein.
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