Tomatoes are botanically fruits because they develop from a flower and contain seeds.

The longer version

Botanists classify plant foods by development rather than by flavor. A fruit is the matured ovary of a flowering plant, the structure that encloses seeds, while vegetable is a kitchen term applied loosely to savory plant parts, including leaves, stems, roots, and flower buds. A tomato forms from a pollinated flower and holds its seeds in a gel.

The same logic makes cucumbers, squashes, eggplants, and peppers fruits as well. Culinary tradition simply sorts by use, which is why the disagreement between cooks and botanists never truly gets settled. Legal systems have occasionally weighed in, usually siding with the everyday meaning rather than the botanical one.

Where this entry sits

Everyday ingredients turn out to be full of quiet chemistry and long history. This collection gathers short, plain explanations of how bread rises, why onions sting, where common spices originate, and how coffee, tea, and chocolate reached the modern kitchen. The full list sits on the Food and Drink page, where every entry is listed in order.