VIENNA, AUSTRIA - APRIL 05: Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall (not in picture) watch chocolate cakes being prepared as they visit Cafe Demel on April 5, 2017 in Vienna, Austria. Their Royal Highnesses observed pastry chefs demonstrating traditional patisserie techniques and met some of the students enrolled in Café Demel's apprenticeship scheme for aspiring confectioners. (Photo by Arthur Edwards - Pool/Getty Images)
