Pound fresh ahi tuna (makes 12 rolls) • Nishiki California sushi rice, rinsed • water • rice vinegar • palm sugar • wasabi paste from dried wasabi powder • For the miso soup: • water • Broth made from shrimp shells,heads, tails, or 2 tsp of bonito dashi fish stock • soy sauce • miso paste, called natto, fermented organic soybeans • Chopped fresh mexican green onions, white and green part, or leek •