Cabbage Egg Drop Soup

Bahan-bahan (6 porsi)

• 1 tablespoon olive oil
• 1 small white onion, peeled and diced
• 3 cloves garlic, minced
• 8 cups vegetable stock (or chicken stock)
• 1 small head of Napa cabbage, roughly chopped
• 1 teaspoon ground ginger
• 1/4 teaspoon white pepper
• 3 eggs, whisked
• 2 teaspoons toasted sesame oil
• optional topping: thinly sliced green onions