01 - Whisk together eggs, milk, salt, and white pepper in a large bowl until smooth and fully combined.
02 - Add bean sprouts, carrots, green onions, mushrooms, bell pepper, and diced protein to the egg mixture. Stir until all ingredients are evenly distributed.
03 - Heat 2 to 3 tablespoons vegetable oil in a large nonstick skillet or wok over medium-high heat until shimmering.
04 - Scoop approximately 1/2 cup of egg mixture per patty into the hot pan, flattening gently with the back of a spoon. Cook 2 to 3 patties at a time depending on pan size.
05 - Fry each side for 2 to 3 minutes until golden brown and crispy. Flip carefully with a spatula and cook the second side. Transfer to a paper towel-lined plate. Repeat with remaining mixture, adding more oil as needed.
06 - Combine chicken broth, soy sauce, oyster sauce, sesame oil, and white pepper in a small saucepan. Bring to a simmer over medium heat.
07 - Mix cornstarch with cold water in a small bowl to create a smooth slurry. Stir into the simmering sauce and cook for 1 to 2 minutes until thickened and glossy.
08 - Arrange crispy Egg Foo Young patties on serving plates and drizzle generously with the savory gravy. Serve immediately while hot.