Beef with Green Peppers in Black Pepper Sauce is a classic Chinese dish that combines tender beef slices with crisp green peppers in a bold and flavorful black pepper sauce. The beef is marinated in a mixture of soy sauce, cornstarch, and black pepper, which helps to tenderize the meat and infuse it with a spicy kick. The green peppers are stir-fried until they are slightly charred and retain their crunchiness. The black pepper sauce is made with a combination of soy sauce, oyster sauce, black pepper, and a touch of sugar, creating a rich and aromatic sauce that coats the beef and peppers. This dish is perfect for those who enjoy a bit of heat and a burst of flavor in their meals.