I don't know many tearooms in Paris that offer real hot chocolate drinks, made of real chocolate and not of some powder. This tearoom recalling the old Paris offers a three star aztec chocolate.
Je ne connais pas beaucoup de salons de thé à Paris qui proposent des vrais chocolats chauds gourmands et épais. Ce salon de thé qui rappelle le vieux Paris propose un chocolat aztèque trois étoiles.