Cumin pork noodles

Name: Cumin pork noodles
Ingredients: 1 tbsp cumin seeds; 1 tsp Sichuan peppercorns; 1 tsp dried red chilli flakes; 4 garlic cloves, crushed; 4 tbsp vegetable oil, plus extra for cooking; 1 tbsp light soy sauce; 1 tbsp oyster sauce; 1 tbsp Chinese black rice vinegar (can substitute for rice vinegar, if absolutely necessary); 1 tbsp Shaoxing rice wine (can substitute for dry sherry vinegar, if absolutely necessary); 1 tsp sugar (any type); 250g/9oz pork mince; 200g/7oz dried noodles (any type); small handful fresh coriander, roughly chopped; sea salt