The present invention concerns a method for producing a composite dairy product by co-filling viscous components and obtaining a spiral or spiral-like product aspect. Advantageously, the method does not require rotational movements of filling nozzles for obtaining the product aspect and thus provides a reduction in the overall complexity of the filling equipment. The composite dairy product comprises a container comprising at least one transparent portion, and wherein a viscous component is visible as a substantially discontinuous stretch on said transparent portion of the container.