1. Cut each of the spring roll skins diagonally into 4 triangles.
2. Place a generous teaspoonful of duck meat in the center of each triangle then sprinkle with a 1/2 teaspoon of green onions and add 1/2 teaspoon of plum sauce.
3. With water, moisten the edges of the skins then fold over and seal.
4. Cook the pancakes on a grill until crisp or, alternatively, steam them over simmering water until they are soft.
5. To serve, arrange the pancakes on a serving plate accompanied by a small bowl of the remaining plum sauce.