To improve the temporal stability of multi-layered chewing gum. By adjusting the amount of a gelatinizing agent, especially gelatin, in an edible material, especially in a soft candy (1.5 to 6% by weight in the edible material and 1.5 to 10% by weight based on a gum base), it is possible to suppress moisture absorption and deterioration of flavor, prevent negative effects on the properties of chewing gum such as melting, and secure production suitability.