Enjoy French luxury desserts at Cheongdam Dessert Cafe Guillaume. I went to Guillaume in Cheongdam because I heard that you can enjoy authentic French luxury desserts run by a Frenchman in Seoul :-) Guillaume Cheongdam is closest to Exit 4 of Apgujeong Rodeo Station by subway, and it's a cute pink building that you can see when you go straight up from Burgerting Alley on Hakdong Sajeong Street.