The invention relates to a method for insulating the filling contents of a food product, including the following steps: providing at least one shell initially made of an edible moldable material; applying at least one coating layer including B at least one fatty substance in said shell in order to form an inner insulating coating layer; feeding the filling contents into said shell; applying at least one covering layer including at least one fatty substance onto the filling contents in order to obtain a continuous insulating covering layer that bonds to said inner insulating coating layer; and closing said shell by applying an edible moldable material, characterized in that the second and fourth steps are preceded by cooling to a temperature of around −25° C. to 30° C., and in that the fifth step is preceded by a step of heating said upper surface of said mold.