A knickerbocker glory is an ice cream sundae that is served in a large tall glass, particularly in the United Kingdom.

The knickerbocker glory, first described in the 1930s, may contain ice cream, gelatin, cream, fruit, meringue, even liquor. Layers of these different sweet tastes are alternated in a tall glass and topped with different kinds of syrup, nuts, whipped cream and often a cherry.

More information on the Wikipedia page [1].

See also Parfait (food).