Final answer:
The dessert consisting of sponge cake topped with ice cream and meringue, often flambeed before serving, is known as Baked Alaska.
Step-by-step explanation:
The stately dessert described as sponge cake topped by ice cream and meringue is A) Baked Alaska. Neither B) Tiramisu, C) Panna Cotta, nor D) Soufflé fit this description. Baked Alaska is well-known for its impressive construction, involving a base of sponge cake topped with ice cream and then encased in a layer of browned meringue. The dessert is often flambeed before serving, providing a grand presentation ideal for special occasions. The contrast between the warm meringue and the ice cream makes Baked Alaska a unique and delightful treat.