Ploughman's lunch term "ploughman's lunch" is believed to date no further back than the 1950s, when the Cheese Bureau (a marketing body affiliated with the J. Walter Thompson advertising agency) began promoting the ploughman's lunch in pubs as a way to increase the sales of cheese, which had recently ceased to be rationed. Its popularity increased as the Milk Marketing Board promoted the meal nationally throughout the 1960s. Pierce the Ploughman's Crede (c.1394) mentions the traditional ploughman's meal of bread, cheese and beer. Bread and cheese formed the basis of the diet of English rural labourers for centuries, with skimmed-milk cheese, supplemented
Bread sauce or chicken. The use of slightly stale bread is optimal, making it an economical way of using up leftover bread. The sauce is easy to make and uses readily available ingredients. Bread sauce can be traced back to at least as early as medieval times, when cooks used bread as a thickening agent for sauces. The utilisation of bread in this way probably comes from cooks wanting to use up their stale bread who discovered that it could be incorporated within sauces to make them thicker. Turkish cuisine also features a cold sauce made from breadcrumbs mixed with pounded walnuts