Purée

A purée is any food (usually a or vegetable) that is finely mashed to a smooth, thick consistency. Purées can be used as a garnish, served as a side dish or added as a thickener to sauces or soups.

Purée (verb) – To grind or mash food until it's completely smooth. This can be accomplished by one of several methods including using a food processor or blender or by forcing the food through a sieve.