Ingredients:

1 lb peeled and deveined shrimp
1 tablespoon egg white
1 1/2 teaspoon tapioca starch (菱粉)
1 heap tablespoon baking soda

Method:

Peel, slit the back of shrimp, and remove veins
Transfer shrimp into a big (deep) bowl and add ice cold water from your fridge–you can also use regular tap water and add some ice cubes to it. Make sure the shrimp are submerged in water.
Add 1 heap tablespoon of baking soda into the bowl and lightly massage the shrimp with the baking soda water. Set aside for 30 minutes.
Rinse the shrimp thoroughly with cold running water.
Pat dry with paper towels. By now, you should see that the shrimp become somewhat translucent in appearance.
Add egg white and tapioca starch to the shrimp. Use your hand to blend well while lightly massaging the shrimp.
Cover the shrimp with plastic wrap and marinate overnight.