recipe

Recipe is the Latin imperative singular of recipere, meaning 'to take, to receive.' The word entered English not through the kitchen but through the pharmacy: it was the first word written at the top of a medical prescription, the physician's instruction to the apothecary. 'Recipe' meant 'take' — take these ingredients, combine them in these proportions, prepare them in this manner. The symbol Rx, which still appears on prescriptions and pharmacy signs worldwide, is a stylized abbreviation of recipe, with the 'R' from the word and the slash through it deriving from the sign of Jupiter, which medieval physicians invoked for healing. The word was a command, an order from a healer to a compounder, and its authority derived from the physician's knowledge of which substances, in which combinations, could cure disease.

The prescription-recipe was a highly structured document. It began with the command 'Recipe,' followed by the ingredients listed by their Latin names, each preceded by its quantity (measured in apothecary weights: grains, scruples, drams, and ounces). The instructions for preparation followed: how to grind, mix, dissolve, or distill the components. The format was standardized across European medicine from the medieval period through the nineteenth century, and its structure — a list of ingredients followed by instructions for combining them — is the direct ancestor of the modern cooking recipe. The culinary recipe borrowed not just the word but the format from the medical prescription, arranging ingredients and instructions in the same hierarchical order that physicians had used for centuries.

The migration from pharmacy to kitchen occurred gradually during the seventeenth and eighteenth centuries, as printed cookbooks became popular and adopted the prescriptive format of medical texts. Early cookbooks were often written by physicians or included sections on medicinal food preparation, and the boundary between medicine and cooking was far more porous than it is today. A 'receipt' (the older English form of the word, from Latin recepta) could refer to a medical formula, a culinary instruction, or a household remedy for cleaning silver or removing stains. The word 'recipe' eventually specialized toward cooking, while 'prescription' took over the medical sense, but the two remained interchangeable well into the nineteenth century.

The doctor's imperative — 'Take!' — lingers in the modern recipe in ways that its users may not recognize. A recipe is still a command. It does not suggest or recommend; it instructs. 'Take two cups of flour.' 'Take three eggs.' The imperative voice that a Roman physician used to order an apothecary has been democratized into the voice that a cookbook uses to guide a home cook, but the grammatical structure is identical: an authority telling a practitioner what to take, in what quantity, and what to do with it. The recipe is one of the oldest surviving textual formats in human civilization — a set of instructions for combining substances to produce a desired effect — and whether that effect is the relief of pain or the production of a soufflé, the word at the top is still, imperatively, 'Take.'