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Japanese Onion Soup

A comforting and flavorful Japanese Onion Soup combining sweet caramelized onions with a savory dashi broth, perfect for a light and warming meal.

Ingredients

Scale
  • 4 large onions, thinly sliced
  • 4 cups dashi stock
  • 2 tablespoons soy sauce
  • 1 tablespoon mirin
  • 1 tablespoon vegetable oil
  • 1 teaspoon sugar
  • 2 green onions, chopped (for garnish)
  • Optional: tofu cubes or sliced mushrooms

Instructions

  1. Heat vegetable oil in a large pot over medium heat.
  2. Add the thinly sliced onions and sugar, cooking slowly until onions are caramelized and golden brown, about 25 minutes.
  3. Pour in the dashi stock, soy sauce, and mirin; stir to combine.
  4. Bring the soup to a simmer and cook for an additional 10 minutes to blend flavors.
  5. If using, add tofu cubes or mushrooms and cook for 3-5 minutes until heated through.
  6. Ladle the soup into bowls and garnish with chopped green onions before serving.

Notes

For extra richness, add a soft boiled egg or a sprinkle of toasted sesame seeds before serving.