From Kanoble, a specialty brand that has produced numerous products using domestic fermented butter with the theme of "edible butter," comes the brand's first "Tanegashima Sweet Potato Butter Cake." Available at National Department Store and the official online store.

Kanoble, a specialty brand of domestic fermented butter that has created many butter products, has newly produced the "Tanegashima Sweet Potato Butter Cake" with the aim of creating "a butter cake like no other." While the common recipe for butter cake involves mixing butter with flour, eggs, and sugar and baking it in an oven, the "Tanegashima Sweet Potato Butter Cake" is made with a reverse concept: using butter and slowly baked Tanegashima sweet potato itself, without an oven, to create the cake.

Tanegashima sweet potatoes, aged for over a month, are slowly baked at low temperatures through a reverse step heating process that gradually lowers the temperature from high to low, concentrating their sweetness to a sugar content of 45 degrees. By combining these richly flavored, baked sweet potatoes with well-toasted butter, a deep, roasted aroma reminiscent of oven-baked goods is created. Furthermore, rock salt adds an accent to the flavor, achieving an exquisite balance between the richness of butter, the aroma of toasted butter, and the sweetness of the sweet potato.

The texture is moist and rich, like fresh cake, and can be enjoyed as is, like cake or ice cream, or even as a butter spread. This "Tanegashima Sweet Potato Butter Cake" became available from Monday, February 10, 2020, at National Department Store's Okayama and Tokyo branches, as well as their official online site.