Vinaigrette: In jar combine all ingredients. Cover tightly and shake vigorously. Set aside until ready for use.

Salad: In a bowl filled with warm water soak seaweed until soft. Dice after softening. In a large bowl combine cucumbers, seaweed, sprouts, ginger, crab and vinaigrette, being careful not to break up the crabmeat. Place salad in mounds on a plate and garnish with scallion