Despite the alarming name, it has nothing to do with making anyone sick — one story says it was invented during an 1830s cholera outbreak, when people stuck at home baked with whatever was in the cellar.
A pie crust is layered with potato, leek or onion, apple or pear, and cheese, then baked until golden. Goms valley bakeries and market stalls sell it by the slice, a filling snack built from long-storing root cellar ingredients.