3 minutes. Fish tofu is made from fish meat as the main ingredient, minced into a paste with other auxiliary ingredients, extruded into blocks, cooked and fried. It is a cooked food in itself. Normally, it only takes 3 minutes to fry the fish tofu to expand. . The finished fish tofu has a neat and beautiful appearance, a uniform and shiny golden color, and is very delicious even if you make it at home.