First time here and no hand pulled noodles I'm afraid. So if you wanna do your noodles correctly here are the two essential ingredients, all estimations and gut feeling:

-Baking Flour
-Water

Method:

-First pour an estimated 2/3 flour to 1/3 water and mix by hand to create a dough from it.
-Knead until the dough no longer feels wet.
-Fold your dough 2-5 times before letting rest for about 30 minutes before doing again. All depending on your climate. Dry climate would be less compare to humid climate.
-Rest finally before prepping the dough to be noodles.
-You have the options of using mechanic or hand pulled method, or cut individually by hand. Make sure four is added to avoid sticking.
-Pour all in a pot of boiling water and stir constantly for 2-5 minutes depending on noodles thickness.
-Strain noodles, and prep with however you want, poured into a north or seasoned then like I did.
-Done!