1. Roughly chop half of the prawns into chunks. Use a food processor to process remaining prawns into a paste. In a large mixing bowl, combine both with ginger, chicken stock powder, salt, egg white, Shaoxing wine, corn flour and sesame oil. Cover in cling film and set aside.
2. Remove crusts from slices of bread, and then cut diagonally into 4 triangles. Spread a spoonful of prawn mixture onto each triangle, and then coat prawn side with sesame seeds.
