Peking style noodles

Name: Peking-style noodles
Ingredients: 350g fresh or dried egg noodles; 1½ tbsp sesame oil; 1½ tbsp groundnut oil; 1½ tbsp finely chopped garlic; 1 tbsp finely chopped fresh root ginger; 3 tbsp finely chopped spring onions; 450g minced pork; 3 tbsp yellow bean sauce; 1 tbsp chilli bean sauce; 1½ tbsp Shaoxing rice wine or dry sherry; 2 tbsp dark soy sauce; 2 tsp salt; ½ tsp freshy ground black pepper; 2 tsp chilli oil (optional); 2 tsp caster sugar; 300ml chicken stock preferably homemade; 3 tbsp coarsely chopped spring onions, to serve