Recurrence pattern: every year on November 30.

National Mousse Day is celebrated worldwide on November 30. This food holiday is dedicated to enjoying mousse, a light dessert known for its airy texture, which is achieved by folding in whipped cream or egg whites. Mousse can be flavored with chocolate, puréed fruit, or vanilla, and there are also savory variations made with ingredients like fish or avocado. To celebrate, people often indulge in mousse at restaurants or coffee shops, or they can prepare it at home using recipes such as one that combines melted semisweet chocolate, powdered sugar, cocoa or coffee, and whipped cream. National Mousse Day provides a delightful opportunity for dessert lovers to treat themselves to this frothy delicacy.