Squash (vegetable) in the context of "Jam"

Fruit preserves are preparations of fruits whose main preserving agent is sugar and sometimes acid, often stored in glass jars and used as a condiment or spread.

There are many varieties of fruit preserves globally, distinguished by the method of preparation, type of fruit used, and its place in a meal. Sweet fruit preserves such as jams, jellies, and marmalades are often eaten at breakfast with bread or as an ingredient of a pastry or dessert, whereas more savory and acidic preserves made from "vegetable fruits" such as tomato, squash or zucchini, are eaten alongside savory foods such as cheese, cold meats, and curries.

Mesoamerican cuisine – (covering Belize, El Salvador, Guatemala, Honduras, Nicaragua, northern Costa Rica and Mexico) has four main staples: maize (many varieties based on what climate it is grown in), beans, squash and chili. Other plant-based foods used include amaranth, avocado, cassava, cherimoya, chia, chocolate, guava, nanche, pineapple, sapodilla, sweet potatoes, yucca and zapote.

Historically, various methods and techniques were employed to store, prepare and preserve the foods, most of which remain in use today. Hernán Cortés introduced rice and wheat to Mesoamerica, prior to which time milpa (known as the cornfield) was one of the main sources of sustenance.