Sweet, Tender Onions from the Seto Inland Sea
Awaji Island onions are renowned throughout Japan for their exceptional sweetness and tender texture. They are sometimes described as sweeter than watermelons or mandarins, making them a distinctive local specialty and a popular ingredient in Japanese cuisine.
Their remarkable sweetness is thought to result from a combination of the island’s climate, the varieties cultivated, and traditional growing methods unique to Awaji Island. Unlike ordinary onions, which generally take around four months from sowing to harvest, Awaji onions are cultivated over a longer period of approximately seven months. This extended growing season allows the onions to develop their characteristic flavor gradually.
Another important step takes place after harvesting. Rather than being shipped immediately, the onions are hung in specially designed drying sheds known as tamanegi-goya. There, they are dried and allowed to mature until their sweetness and flavor have developed.
This careful process contributes to their soft texture and rich, mellow taste, distinguishing Awaji onions from many other varieties available in Japan.
Onions have become an indispensable ingredient in Japanese home cooking, appearing in everything from soups and simmered dishes to curries, stir-fries, and salads. Awaji Island onions are especially appreciated for their sweetness and tenderness, which make them enjoyable in a wide range of preparations.
If you visit Awaji Island, be sure to try these celebrated onions and experience the flavor that has made them one of the region’s best-known agricultural products.
Awaji Island onions are listed as being in season from August through February, offering visitors an opportunity to discover this local specialty across much of the year.