Onsen tamago

Onsen tamago is a traditional delicacy made by slow-cooking eggs in baskets that are submerged in onsen hot springs. The eggs are cooked in their shells so that the yolk becomes soft-set and the egg white develops a loose consistency. It is believed that the secret is in the hot springs' temperature, which causes the egg to be creamy and flavorful on the interior.

Traditionally, onsen tamago is consumed by placing the egg in an indentation in steamed rice and drizzling some soy sauce or broth around it, preferably with some grated daikon on the side. It is recommended to garnish the dish with finely chopped spring onions on top.