Put shrimp into a bowl. Sprinkle cornstarch and salt over, then gently rub them to coat evenly.
Pour ½ tablespoon of oil into a hot wok/skillet. Add the shrimp. Toss to sear them quickly over high heat. Transfer out as soon as it curls up and turns pink (see note 3).
Scramble the eggs
Add 1 tablespoon of oil in the vacant wok over high heat. when it starts to smoke, pour in the beaten egg. As it turns solid, break it into small pieces before dishing it out for later use.
Combine the dish
Pour the remaining ½ tablespoon of oil into the wok. Add minced garlic and sizzle it until fragrant.
Add cooked rice, along with light soy sauce, salt, and pepper. Toss constantly to heat the grains evenly.
Put in the shrimp, egg, sesame oil, and scallions. Toss for 30 seconds or so to well combine all the elements. Serve warm.
Notes
1. For the best texture, it's not recommended to use cooked shrimp. Raw, headless, and shelled shrimp of any size will work.2. If possible, refrigerate your cooked rice before frying. Also, use a fork to loosen the grains if the rice appears lumpy.3. Shrimp cook very quickly, so be attentive and avoid overcooking them.