How to Make It
In a small bowl, whisk together the apple juice, shiro dashi, soy sauce, sherry vinegar and sesame oil. Set the tofu in 4 shallow bowls. Top with the chestnuts and frisée. Pour the apple dashi around the tofu (reserve any remaining dashi for another use). Drizzle with a few drops of wasabi oil and serve.
Fuji apple juice is available at supermarkets and juice bars, or you can make your own. Shiro dashi is a stock made with soy sauce, white soy, bonito (a type of fish)and seaweed. Shiro dashi and wasabi oil are both available at Asian markets.