A machine (1) is described for automatically producing a granular food product obtained starting from granules of grain semolina, comprising a plurality of consecutive motorized rotating mixers (3) with vertical rotation axis which each provide a central rotating cylindrical upright (33) which bears horizontal arms (7) adapted to support processing means (8, 11, 13, 14, 5) of the food product. Each mixer (3) is contained in a fixed ring (4) which provides a side vertical containment wall (44) of the product with apertures 10 (5) for the communication between consecutive rings (4), the machine (1) also providing at least a conveyor belt (6) arranged under the rings (4) adapted to transport the product through each mixer (3) and between a mixer (3) and the other.
