This macaroni has a hollow part formed along the noodle direction thereof, and a cross-section of the noodle has a substantially circular outer peripheral wall part and a substantially circular hollow wall part situated to the inside of the outer peripheral wall part. A plurality of grooves are formed along the noodle direction, and in a cross-section of the noodle, the plurality of grooves has a cross-sectional shape that extends in a spiral shape between the outer peripheral wall part and the hollow wall part, and each have an opening width of 0.3-2.5mm.
