rec·i·pe

"It is worth remembering that in its purest form a recipe was simply a cook's receipt written in a ledger to show where the housekeeping money had gone. At best it was an account of someone's meal, an aide-mémoire for the cook who might want to make a successfl supper again. To use either as an unshakeable chemcal formula is surely missing the point."

Nigel Slater, Appetite.