Wash and peel yams
Dice yams in half inch cubes
Dice small spare ribs, cut meat between bones to produce 1-inch cubes.
Add sesame oil.
Pour rice wine over meat.
Add garlic powder.
Add rice powder.
Mix seasonings in meat until evenly coated. Marinate for at least 30 minutes.
Place meat over yams
Steam dish - Put steam rack in large pan. Fill large pan with water until water level meets top of steam rack. Place plate on rack.
Cover and bring water to a boil. Then reduce to medium heat for water to simmer. Steam for 2 hours.