Cook the noodles to packet instructions, rinse off with cold water then fill the pan with cold water and leave the noodles in there whilst you get started on the rest.
Slice the onions thinly and fry until soft in an oiled frying pan.
Turn the pan to high heat and add the noodles.
Leave the noodles to get a slight char on the bottom before stirring.
Add in the MSG, white pepper and salt and stir to coat the noodles.
Now add in the bean sprouts and stir fry until cooked.
Lastly add in the soy sauces and sesame oil to finish.