Reve Doux is a dessert shop in Jamsil Songnidan-gil that serves croissants with nearly a thousand layers, parfaits, and saengttonore. The croissants get their dense layers by repeatedly rolling, folding, and cutting aged dough. Customers crowd in as soon as it opens, and seats are often unavailable. The inside of the croissant is sometimes soggy and unevenly baked.