Ingredients: 500g beef, one potato, half a spoon of black pepper, one spoon of oyster sauce, one spoon of starch, two spoons of soy sauce, one spoon of oyster sauce and one spoon of black pepper.

Steps:

1. Cut beef into thick strips, add one scoop of oil, two scoops of soy sauce, one scoop of oyster sauce, one scoop of starch and one scoop of black pepper, mix well and marinate for half an hour. Cut potatoes into thick strips, wash off the surface starch, and control the water for later use.

2, non-stick pan with less oil, add potato chips and fry until both sides are browned, add beef slices, add potato chips, add a spoonful of oyster sauce and half a spoonful of black pepper and mix well.