01 - Whisk together eggs, milk, salt, and white pepper in a large bowl until smooth and well combined.
02 - Add bean sprouts, carrots, green onions, mushrooms, bell pepper, and diced protein to the egg mixture. Stir thoroughly to distribute ingredients evenly.
03 - Heat 2–3 tablespoons vegetable oil in a large nonstick skillet or wok over medium-high heat until shimmering.
04 - Scoop approximately 1/2 cup of the egg mixture into the hot pan for each patty. Gently flatten to create even, round shapes. Fry 2–3 patties simultaneously based on pan size.
05 - Cook each side for 2–3 minutes until golden brown and crispy. Carefully flip using a spatula and cook the opposite side until evenly colored. Transfer to a paper towel–lined plate. Repeat with remaining batter, adding additional oil as needed.
06 - Combine chicken broth, soy sauce, oyster sauce, sesame oil, and white pepper in a small saucepan. Bring to a gentle simmer over medium heat.
07 - Whisk cornstarch with cold water in a small bowl to create a smooth slurry. Stir into the simmering broth mixture and continue cooking for 1–2 minutes until sauce thickens and coats the back of a spoon.
08 - Arrange crispy Egg Foo Young patties on serving plates. Generously drizzle the hot gravy over the patties and serve immediately while hot and crispy.