A 'flat hearth' at Pontfaen, Ciliau Aeron, Cardiganshire.
This meal was cooked without much supervision in a ffwrn fach (pot oven), suspended over an open fire. Hence tato rhost a llaeth enwyn (tato rhost and buttermilk) was a meal popularly served on the farms on churning day.
Tato pobi was the name given to this dish in another part of Cardiganshire, e.g. Cellan, Cardiganshire.