Imo Yokan from Funawa is a traditional Japanese confection made primarily from sweet potato (satsuma-imo), emphasizing natural flavor and restrained sweetness. The recipe is simple, based on mashed sweet potato blended with sugar and a small amount of agar, without artificial colors or flavorings.

Its texture is firm yet smooth and compact, allowing it to be sliced cleanly into uniform portions. The flavor profile is mild and clean, highlighting the natural sweetness and subtle roasted notes of the sweet potato rather than an overt sugary taste.

The color ranges from pale yellow to golden, depending on the variety and season of the raw ingredient. It is commonly enjoyed with green tea, where its gentle sweetness complements the beverage’s grassy and slightly bitter tones.

Imo Yokan has become a signature product of Funawa and a representative example of Tokyo’s wagashi tradition.