What is a purée?
Purée and (more rarely) mash are general terms for food, usually vegetables or legumes, that have been ground, pressed, and/or strained to the consistency of a soft paste or thick liquid. Purées of specific foods are often known by specific names, e.g. mashed potatoes or apple sauce.
Purées can be made in a blender, or with special implements such as a potato masher, or by forcing the food through a sieve, or simply by crushing the food in a pot. Purées generally need cooking before or after grinding, in order to improve flavour and texture.