Heavy cake or Hevva cake (Cornish: Hevva) is a cake made from flour, lard, butter, milk, sugar and raisins that originated in Cornwall.Its name is derived from the pilchard industry in Cornwall prior to the 20th century when a 'huer' (cliff top lookout) helped locate shoals of fish. The huer would shout 'Hevva!, Hevva!' to alert the boats to the location of the pilchard shoals.