Combine flour and salt in a large bowl and mix well. Slowly blend in water and mix with a pair of chopsticks, until water is integrated with the flour and there is no dry flour left. Dust both hands with dry flour, then start to knead by hand until dough forms. The dough should be quite soft and sticky.

Dust a working surface with dry flour. Transfer the dough onto it and continue to knead until the surface turns smooth and the texture springy, 10 to 15 minutes. Dust hands and the working surface with extra flour whenever the dough starts to feel sticky during the process.

Alternatively you can use a stand mixer to make the dough. Attach the dough hook to the mixer, transfer the flour and the water into the bowl, and turn on low speed. Stop the mixer and scrape the flour from the bowl if needed. Mix until the dough becomes smooth and elastic, about 15 minutes.

Dust a large bowl with dry flour. Transfer the dough to that bowl and cover the dough with a damp dish towel. Cover the bowl with a lid (or plastic wrap). Let the dough rest at room temperature for at least 2 hours (or store the dough in the fridge if you're planning to use it the next day, after resting at room temperature).

Dust the working surface and both hands with flour. Transfer the dough onto the working surface and knead it a few times. Divide the dough into 2 equal pieces, then again to make 4 pieces total. Knead each piece of dough by hand to shape a ball.

Dust the working surface again. Take one piece of dough and press it into a round disc. Roll it with a rolling pin into a long and round sheet, about 5 to 6 millimeters (0.2 inches) thick. Roll out the rest of the dough pieces the same way. Use large bowls or plastic wrap to cover and seal the dough sheets, to keep them from drying out. Let rest for another 30 minutes to 1 hour.

Right before making noodles, bring a medium sized pot of water to a roaring boil (very important).

Work on the dough sheets one by one. You should cover the rest of the dough with a damp dish towel or plastic wrap.

Slice the dough sheet into several strips, about 2 centimeters (0.8 inches) wide (or narrower if you want thinner noodles).

Pick up a strip of dough and start to pull it from one end to shape an evenly thick, long noodle, until it becomes quite thin and almost breaks apart. It’s OK if the noodle breaks into 2 to 3 shorter segments. Drop the noodle immediately into the boiling water. (To get the idea of the process, please refer to this short video.)

Pull another 2 to 3 strips of dough and drop them into the boiling water. Cover the rest of the dough with a damp dish towel (see footnote). Boil the noodles until cooked through, 1 to 2 minutes. Transfer to a plate and set aside. Work on the rest of the dough in the same manner.

You can use the noodles in any noodle soup or mix them with sauce. If you aren’t going to serve the noodles immediately, add a few drops of sesame oil onto them and mix by hand. You should always eat the noodles while they’re warm and fresh, because they will become sticky and turn into a solid mass once they cool off.

Store leftover noodles in an air-tight container in the fridge for 1 to 2 days.

To serve leftover noodles, place them in a colander so that you can easily dip them into a pot of boiling water. When you do this, use a pair of chopsticks to gently separate the noodles, and leave them in the water until warm. Heating them this way shouldn’t take more than 30 seconds.