Okayama Langue de Chat is a premium langue de chat that is a sandwich of Okayama white peach and cream cheese chocolate in a dough made with Jersey milk from the Hiruzen Plateau. How to Use Ready to eat after opening the bag. Ingredients Semi-chocolate (domestically produced), wheat flour, sugar, margarine, egg white, milk, skim milk powder, oil processed food/emulsifier, leavening agent, flavoring, acidulant, coloring (Rikukuten, Red 106), (contains wheat, egg, milk ingredients, soybeans, peaches)