Calbee, Inc. has unveiled a new addition to its popular “Red Angel’s Baked Sweet Potato Fries” lineup: Fermented Butter Flavor. This new offering blends the natural sweetness of Calbee Kaitsuka Sweet Potato’s original Beni Tenshi variety with the rich aroma and clean aftertaste of fermented butter.
Developed through extensive testing to enhance the inherent flavor of baked sweet potatoes, this luxurious treat delivers a crisp skin, sticky texture, and a fragrant buttery finish.
Available from November 2025, the new flavor will be sold at the Kuradashi Baked Sweet Potato Kaitsuka cafés in Kasumigaura and Nagareyama Otakanomori.
This new flavor continues Calbee’s tradition of crafting innovative sweet potato desserts that highlight Japan’s seasonal ingredients and authentic tastes.
