Candy cubes covered with powdered sugar are a real delight in which country for they named?

The correct answer is Poland.

Candy cubes covered with powdered sugar are a traditional Polish treat called "Cukierki Puderki". These sugary treats are cube-shaped, made with milk, sugar, and flavored with vanilla or other natural essences. They're then dipped in powdered sugar, giving them their signature sweet and powdery coating. "Cukierki Puderki" are a cherished part of Polish culinary heritage, enjoyed during special occasions, gatherings, and as a sweet snack in between. They're also a popular treat among children and adults alike.