Pat the wings dry, then combine soy sauce, rice wine, sesame oil, rice vinegar, garlic powder, salt, pepper, sugar, onion powder, and Chinese five-spice in a large zip-top bag or bowl. Massage all the wings so each piece is well coated.
Add cornstarch, the whole egg & egg yolk to the marinated wings. Seal the bag (or mix well in bowl), and massage again until everything is uniformly coated. Let the wings marinate for about 2 hours—this helps the flavors penetrate and the crust set up.
Heat oil in a heavy pot until it reaches ~325°F (about 163°C). Fry wings in small batches (so you don’t overcrowd), for 5-7 minutes, until the skin is crispy and golden. Remove with a slotted spoon or spider, and drain wings on a wire rack placed over a paper towel–lined baking sheet.
Serve your wings right after draining. They go great with hot sauce, mumbo sauce (for that iconic DC takeout flavor), or your favorite dipping sauce. Add sides like fried rice or fries to round out the meal.