The plant has small leaves that are dried to make sansho powder. The fresh leaves – sold on short stalks – are available in the produce section of Japanese supermarkets. If you can’t find ...

Drain the spinach and squeeze dry. ? In a blender, puree the spinach, pickled ginger, miso, mirin and sansho powder with 2 tablespoons of water until smooth and spreadable. ? In a small bowl ...