onion ground to a paste

Onion paste is a preparation made by grinding or blending fresh onions into a smooth, homogeneous paste or puree. Derived from Allium cepa, the common bulb onion, this paste retains the sulfurous compounds and aromatic volatiles characteristic of raw onions while creating a uniform texture that integrates seamlessly into culinary preparations. The paste may be prepared from white, yellow, or red onion varieties, with slight flavor variations depending on the cultivar selected; yellow onions tend to produce a sweeter paste due to their higher natural sugar content.

Onion paste serves as a foundational ingredient in many cuisines, functioning both as a flavor base and as an emulsifying agent. The grinding or blending process ruptures cell walls, releasing volatile compounds and enzymes that develop flavor complexity, particularly when the paste is heated or allowed to oxidize.

Onion paste is a fundamental building block in Indian, Southeast Asian, Middle Eastern, and Latin American cuisines. It serves as a primary base for curries, marinades, and wet masalas, where it contributes both flavor depth and moisture. In Indian cooking, it is commonly cooked with ginger paste and spices as the foundation for curries and gravies. The paste is also used in meat and fish marinades, where its enzymes aid in tenderization while imparting savory notes. In Western preparations, onion paste can replace diced onions in sauces, dressings, and braised dishes for a more refined texture and faster incorporation of flavor. Its use is particularly efficient in slow-cooked preparations where the paste distributes evenly throughout the liquid medium.