01 - Whisk together eggs, milk, salt, and white pepper in a large bowl until completely 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 all 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 egg mixture into the hot pan for each patty. Gently flatten to create even rounds. Cook 2-3 patties at a time depending on pan size.
05 - Fry each side for 2-3 minutes until golden brown and crispy edges form. Carefully flip and cook the opposite side. Transfer finished patties to a paper towel-lined plate. Add more oil as needed and continue with remaining mixture.
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 sauce and continue cooking for 1-2 minutes until thickened to desired consistency.
08 - Arrange hot crispy patties on serving plates and drizzle generously with the savory gravy. Serve immediately while hot and crispy.