Cut the beef into 2-inch strips. Marinate with all the beef marinating sauce. Stir in one direction until they become slightly sticky. Set aside. Prepare other ingredients. In a small bowl, combine all the ingredient of the stirring sauce.

Boil enough water in one pot and cook the noodles for 3-4 minutes. If you are using dried egg noodles, rinse in cold water and drain. However for fresh egg noodles, drain them directly.

In the mean time, heat up around 3 tablespoons of cooking oil until really hot over high fire. Fry garlic until aroma over medium fire and turn up the fire again and fry the beef for 30-50 seconds. Transfer the beef out and leave the oil.

Add peppers and onion, fry until slightly soft. Place noodles and return beef strips. Add the stirring sauce and mix well. Serve hot!