The present invention relates to a multilayer film, especially to a multilayer thermoplastic film, which may be used for food packaging, wherein the multilayer film according to the present invention may be provided, on its inner side, with a food additive, particularly with a flavoring and/or coloring and/or an aroma producing food additive (such as e.g. a liquid smoke), which food additive is then released and transferred onto the surface of a foodstuff encased in the multilayer film during cooking and/or processing of the foodstuff.