Beef: Slice beef thinly. Coat them in the beaten eggs then coat them in flour. Leave it for 5 minutes until the coat is firm.
Heat all the oil over medium heat until the oil is really hot. Then fry the beef until the golden brown. Set it aside.
Sauce Slice the garlic and shallots thinly. Melt the butter and stir fry garlic and shallots until they are light-brown. Add white pepper, oyster sauce, sweet soy sauce, sugar and salt. Add water if the sauce becomes too dry.
To Serve: Add the fried beef into the sauce and mix them all together until beef is covered with dark sauce. Serve with white jasmine rice.