Komugi Manju is a traditional confectionery of Tochigi Prefecture consisting of a wheat-flour dough wrapped around sweet red bean paste and steamed. Because baking soda is added to the dough to make it rise light and fluffy, it is also called 'Tanzan Manju' (soda buns), and it is known for its simple, gentle sweetness. Tochigi Prefecture has long practiced double-cropping of wheat alongside rice, so wheat-based foods such as udon and manju have long been part of everyday life. It is considered an essential treat during the Obon season, when the wheat harvest is finished and freshly milled flour becomes available, and it has traditionally been offered at the family Buddhist altar and shared with relatives and neighbors. In the Nasu region of northern Tochigi, there is also a custom of offering this manju on August 1, known as 'Kamanofuta Tsuitachi' (the day the lid of the hell cauldron opens), and it remains a home-cooked flavor deeply tied to the region's annual observances.
Origin
Because Tochigi Prefecture was a region of double-cropping, where wheat was grown as a second crop in paddy fields, dishes using wheat flour have long been widely enjoyed there. Komugi Manju, born from the simple method of wrapping bean paste in dough made from harvested wheat flour and steaming it, became a treat that each household could prepare with familiar ingredients.
History
Komugi Manju has been passed down as an essential dish for annual observances and life-cycle ceremonies. It was especially made as an offering for the family Buddhist altar during the Obon season, when freshly milled wheat flour becomes available, and in the Nasu region of northern Tochigi it became linked to the custom of Kamanofuta Tsuitachi, in which August 1 is regarded as the day the lid of hell's cauldron opens; the practice of offering manju on this day still remains today.
Features
Its most distinctive feature is that baking soda is added to the wheat-flour dough to make it rise light and fluffy without fermentation, and because of this baking soda (sodium bicarbonate), it is also known by the alternative name 'Tanzan Manju' (soda buns). Inside is a lightly sweetened red bean paste, and freshly steamed buns carry a faint aroma of baking soda, an unpretentious, simple flavor that is its charm.
Main Ingredients
Food Culture
Traditionally handmade during Obon and other festive occasions and shared with relatives and neighbors, this custom still remains in many areas. As a seasonal treat also meant to celebrate the harvest of new wheat, it is a confectionery deeply rooted in daily life and local observances.
How It Differs from Home Cooking
At home, the simple approach of steaming the buns easily in a steamer is common, whereas specialty Japanese confectionery shops carefully cook the red bean paste and offer seasonal variations kneaded with cherry blossom or yuzu, allowing customers to enjoy different flavors throughout the year.
Famous Shops
川田の小麦まんじゅう本店
栃木県宇都宮市宝木町1丁目2585-6
A long-established Japanese confectionery shop specializing in Komugi Manju. Also offers seasonal cherry blossom manju and yuzu manju.
FAQ
Q. Why is it called 'Tanzan Manju' (soda buns)?
A. The name comes from the fact that the baking soda added to make the dough rise light and fluffy is sodium bicarbonate. Komugi Manju and Tanzan Manju refer to the same confectionery, with the name varying by region.