Process 2 pounds chicken fine, reserve 2 pounds for later.
Add tahini, scallion, oil, sugar, pepper, fish/oyster sauce, garlic. Process to mix. Remove to a bowl.
Process bamboo, coarse. Add water chestnuts. Process coarse — medium coarse. Add to bowl with chicken mixture.
Hand chop (medium fine) reserved chicken. Mix well with chicken mixture. [Fold as shown on card.]