A method of producing a semifinished confectionary product, such as chocolate or similar, using at least one centrifugal unit for continuously grinding and mixing at least some of the ingredients of said semifinished product, the method comprising the steps of grinding at least a first ingredient to a larger grain size than that of said semifinished confectionery product； mixing the ground said first ingredient with at least one second ingredient inside a processing chamber of the centrifugal unit, by rotating a centrifugal member inside said chamber to move said ingredients inside said chamber along at least one straight, horizontal, simultaneous grinding and mixing path, and to grind and mix the ingredients to form a mixture of the same grain size as said semifinished confectionery product； and taking said mixture out of said chamber through an outlet of said processing chamber.
