Make the noodle dough
Add the flour and salt to a bowl and mix together.
Slowly pour in the water in stages, mixing as you go. This makes it easier to control the hydration - you may need slightly more or less water depending on your flour.
Bring everything together into a dough, then knead until you have a smooth, firm ball.
Cover and let the dough rest for 30 minutes.
Cut the noodles
Bring a large pot of water to a rolling boil.
Take your rested dough and hold it securely over the pot.
Using a clean pair of kitchen scissors, snip small pieces of dough directly into the boiling water.
Try to keep the pieces relatively similar in size so they cook evenly.
Cook the noodles
Cook the noodles for around 2-6 minutes, depending on their thickness.
Mine took around 4 minutes.
Give them a gentle stir occasionally to prevent them sticking together.
Once cooked, drain well.
Make the spicy sauce
Add the hot noodles directly to a bowl.
Top with light soy sauce, black vinegar, oyster sauce, sugar, chilli oil, chilli powder, minced garlic and spring onion.
Heat 1 tbsp neutral oil until very hot, then carefully pour it over the garlic, spring onion, chilli powder and chilli oil in the bowl.
Give everything a good toss until the noodles are coated in that spicy, glossy sauce.
Serve
Finish with fresh coriander and some greens on the side.