Asparagus Crab Soup (Sup Mang Tay Cua)

Ingredients

• 1/2 lb Crab meat; fresh, frozen, or
• 2 ts Salt
• 2 ts Cornstarch dissolved in:
• 1/4 c Chopped fresh coriander
• 2 1/2 qt Water
• 1/4 ts Black Pepper freshly ground
• 1 cn (15-oz) white asparagus;
• 1 ts Vegetable oil
• 1 Clove garlic; chopped
• 2 tb Water
• 1/4 c Chopped scallion greens
• 2 Shallots or scallions;
• 2 lb Pork bones
• 1 tb Fish sauce (nuoc mam)
• 1 Egg