Add pork strips and stir-fry until browned ... Sauté garlic and ginger for 1 minute. Stir in black bean sauce and heat through. Add stock and pepper; simmer for 3 to 4 minutes.
Cut the pork into ... quickly stir fry it for about 2-3 minutes. Transfer it to a bowl at once. Wipe the wok or pan clean, reheat it and add the rest of the oil. Quickly add the black beans ...