2. Put the beef slices into a deep bowl, add oil and marinate for 30 minutes;
3. Add salt, sugar, soy sauce and corn starch to the oil-cured beef slices and marinate for 10 minute;
4. Add oil after the pot is hot. When the oil is hot, add minced garlic and stir-fry until the beef changes color. Sprinkle with white sesame seeds, mix well, serve and spread on rice.