eclair

This term refers specifically to a French pastry. While the word is often used generically for any cream-filled finger pastry, in a culinary context, it strictly denotes the use of choux pastry, which creates a hollow center for the filling.

In English, the word is typically used without the French accent (éclair), though the accent is retained in formal gastronomic writing. It carries a connotation of indulgence and is almost exclusively associated with dessert menus or patisseries.