You'd better to prepare the chili oil in the previous day according to this instruction.
Making red oil wonton
In a large bowl, mix minced pork with ginger, oyster sauce, egg, spring onion and salt. Keep stirring the mixture in one direction until well combined and sticky.
Refrigerate for around 15 minutes for a better flavor.
Assemble wonton one by one.
In a bowl, mix all the seasonings together.
Cook wonton in boiling water for 3 to 4 minutes until the wrappers become transparent completely. You can add some green vegetable like lettuce, bok choy leaves in last minute. Transfer out to serving bowl and then scoop some water to cover most of the wontons (not too much as it may dilute the red oil dressing).
Pour the red oil dressing on top; garnish extra minced spring onion and coriander. Mix well before enjoying.