Neijiang beef is very particular about soup. It is cooked separately with soup, not noodle soup. High-quality pig bones are boiled with slow fire for several hours, and the nutritional essence of bone marrow is completely dissolved in the soup. It is served in a medium-sized bowl with seasoning. Put the fine flour into the soup, then scoop a spoonful of boiled beef and sprinkle a little parsley. A delicious beef noodle is ready.