Time Out says
Established in 1837, Amamidokoro Hatsune prides itself on making its own agar using blends of tengusa from Niijima and other Izu islands. The portions aren’t that large, making them perfect for when you’re just craving a little something sweet.
1-15-6 Nihonbashi-Ningyocho, Chuo-ku
|Transport:||Suitengumae Station (Hanzomon line), exit 8|
|Opening hours:||Mon-Sat 11am-8pm, Sun & hols 11am-6pm|