In a large mixing bowl, combine all-purpose flour and baking soda.

Gradually add water while stirring with a fork until the mixture forms a shaggy dough.

Transfer the dough onto a floured surface and knead for about 10 minutes.

Wrap the kneaded dough in a damp cloth or plastic wrap and let it rest for at least 30 minutes.

Divide the dough into smaller portions and roll each piece as thin as possible.

Slice the rolled-out dough into your desired noodle shape, dust with cornstarch.

Bring a large pot of salted water to a boil and cook the cut noodles for 2-4 minutes.

Drain the noodles and rinse under cold water to stop the cooking process.