Heavy cake

Heavy cake or Tesen Hevva cake is a cake, made from flour, lard, butter, milk, sugar and raisins, that originated in Cornwall. Its name is derived from the pilchard (silver sardines) industry in Cornwall prior to the 20th century when a 'huer' (cliff top lookout) helped locate shoals of fish. In the 17th and 18th centuries, the huer would shout 'Hevva!, Hevva!' to alert the boats to the location of the pilchard shoals. Cornish tradition states that Hevva cake was baked by the huers on their return to their homes, the cake being ready by the time the crews returned to land. Heva became hevva and later morphed into the anglicized version heavy. The texture of the cake itself is neither heavy nor spongy.

Source: Wikipedia