1. Slice the beef against the grain and marinate with sugar for 15 minutes.
2. Drain the excess juice, put in other marinade, and marinate for 15 minutes.
3. Wash the mustard and cut it in half from the middle. Blanch in boiling water and drain
4. Mix the seasoning of fried rice noodles.
5. Pour some oil into the pot, heat the oil, then pour in rice flour, add in 4, stir fry evenly and take out.
6. Pour the oil into the pot again. Before the oil is hot, stir fry the beef until the surface is 70% discolored
7. Then boil the boiled mustard.
8. Finally, add the starch juice, stir fry until well done.
9. Pour over the fried rice noodles.