Confectionery is the art of making confections, or sweet foods. Confections are items that are rich in sugar and carbohydrates, although exact definitions are difficult. In general, however, confections are divided into two broad and somewhat overlapping categories: baker's confections and sugar confections.

Baker's confectionery, also called flour confections, includes principally sweet pastries, cakes, and similar baked goods. Baker's confectionery excludes everyday breads, and thus is a subset of products produced by a baker.

Sugar confectionery (known as candy making in the US) includes candies (also called sweets, short for sweetmeats, in many English-speaking countries), candied nuts, chocolates, chewing gum, bubble gum, pastillage, and other confections that are made primarily of sugar. In some cases, chocolate confections (confections made of chocolate) are treated as a separate category, as are sugar-free versions of sugar confections. The words candy (Canada and US), sweets (UK, Ireland, and others), and lollies (Australia and New Zealand) are common words for some of the most popular varieties of sugar confectionery.

The occupation of confectioner encompasses the categories of cooking performed by both the French patissier (pastry chef) and the confiseur (sugar worker). The confectionery industry also includes specialized training schools and extensive historical records. Traditional confectionery goes back to ancient times and continued to be eaten through the Middle Ages and into the modern era.

The oldest recorded use of the word confectionery discovered so far by the Oxford English Dictionary is by Richard Jonas in 1540, who spelled or misspelled it as "confection nere" in a passage "Ambre, muske, frankencense, gallia muscata [fr] and confection nere", thus in the sense of "things made or sold by a confectioner".

Also according to the OED, the sense of "the art and business of a confectioner" is first recorded in 1743, and the earliest use in the sense of a "confectioner's shop" dates to 1803.

Before sugar was readily available in the ancient western world, confectionery was based on honey. Honey was used in Ancient China, Ancient India, Ancient Egypt, Ancient Greece and Ancient Rome to coat fruits and flowers to preserve them or to create sweetmeats. Between the 6th and 4th centuries BCE, the Persians, followed by the Greeks, made contact with the Indian subcontinent and its "reeds that produce honey without bees". They adopted and then spread sugar and sugarcane agriculture. Sugarcane is indigenous to tropical Indian subcontinent and Southeast Asia.

In the early history of sugar usage in Europe, it was initially the apothecary who had the most important role in the production of sugar-based preparations. Medieval European physicians learned the medicinal uses of the material from the Arabs and Byzantine Greeks. One Middle Eastern remedy for rheums and fevers were little, twisted sticks of pulled sugar called in Arabic al fänäd or al pänäd. These became known in England as alphenics, or more commonly as penidia, penids, pennet or pan sugar. They were the precursors of barley sugar and modern cough drops. In 1390, the Earl of Derby paid "two shillings for two pounds of penydes.^{[citation needed]}"