Marinate shrimp with cornstarch, salt, white pepper, and sesame oil. Let sit for 10 minutes.
Heat neutral oil in a large wok or skillet over medium-high heat. Cook marinated shrimp until just pink, about 2-3 minutes. Remove and set aside.
In the same wok, stir-fry ground pork and minced garlic until pork is fully cooked and browned, about 3-4 minutes.
Add Shaoxing wine, chicken stock, sesame oil, sugar, salt, white pepper, and frozen peas. Bring mixture to a simmer.
Mix cornstarch with water to create a slurry. Slowly add to the simmering sauce while stirring to thicken, about 1-2 minutes.
Reduce heat to low and slowly drizzle in beaten egg while gently stirring to create silky egg ribbons throughout the sauce.
Return cooked shrimp to the wok and stir gently to combine and heat through, about 1 minute.
Remove from heat, garnish with chopped scallion, and serve immediately over steamed rice.