3 large eggs
2 1/2 cups dashi (Japanese fish and kelp stock)
1 tablespoon soy sauce
1 tablespoon mirin (sweet rice wine)
1/2 teaspoon salt
1/2 cup cooked and diced chicken, shrimp, or seafood of your choice (e.g. crab, scallops)
1/4 cup fresh shiitake mushrooms, thinly sliced
1/4 cup ginkgo nuts or cooked edamame (optional)
2 spring onions (scallions), thinly sliced
4 small prawn/shrimp, for garnish (optional)