“Fu” or dry gluten is a very common cooking ingredient in the Okinawa cuisine. You can find it easily at grocery stores in Okinawa and it looks like a tube-shaped toasted bread. One of the more famous dish in which fu is used is this fu chanpuru recipe. “Chanpuru” is the Okinawa term for mixed or stir-fried food. This recipe then is stir-fried fu with some vegetables. In mainland Japan, fu is found in soup dishes like miso soup.