Korean-Style Stir-Fried Beef

Method

1. 1 Grate the pears into a purée and mix with soy sauce, sesame oil, sugar, garlic, and pepper.
2. 2 The enzymes in pears tenderize the meat and give it a sweet aftertaste; without pears, the dish would be bland and tasteless.
3. 3 Marinate the thinly sliced beef in the marinade for 2 hours, but no more than 3 hours.
4. 4 Marinating for more than 3 hours causes enzymes to break down the meat fibers, making the beef slices mushy like powder.
5. 5 Sauté the beef in a very hot pan over the highest heat for 2 minutes.
6. 6 Add the onions and scallions, stir-fry for 60 seconds, then sprinkle with toasted sesame seeds.