Indulge in Osaka's Newest Sweet Treat: Castella Biscuit Delight

Discover the New Castella Biscuit from Nagasaki Do

Originally established over a century ago, Nagasaki Do has been a staple in Osaka for producing and selling traditional sweets. The company's latest creation, the Castella Biscuit, marries the soft and moist texture of castella cake with the crispiness of a biscuit, forming a new dessert experience that is sure to entice both locals and visitors.

The Castella Biscuit is designed not only to taste great but also to be aesthetically pleasing, making it an ideal gift or souvenir to hand over to family and friends. Its unique qualities blend a premium feel with comforting flavors, making it approachable for everyone.

A Unique Taste Experience

This innovative sweet combines the fluffy, moist texture distinct to castella with a light, crispy biscuit crunch. The contrast offers a delightful surprise with each bite – you first experience a gentle sweetness that develops into a rich, flavorful depth as you chew.

Overcoming Challenges in Texture

Creating a product that successfully merges these two textures was no easy task. The blending of moist cake and dry biscuit texture had long been deemed a challenge due to the difficulty in balancing moisture and structure. The artisans at Nagasaki Do meticulously adjusted baking temperatures and ingredient ratios to perfect the recipe, ensuring the lightness of the biscuit would not compromise the moisture of the castella. This careful approach allowed them to achieve a harmonious balance, resulting in a product that elegantly lays between the two worlds.

Eye-Catching Packaging

The Castella Biscuit is elegantly packaged in a retro-styled wrapper that evokes a sense of nostalgia. The sunny yellow color scheme is visually striking, making it hard to resist picking it up from the shelf. The individual packaging not only preserves freshness but also makes it convenient for gifting.

Product Availability

The Castella Biscuit comes in several options:

- 2-piece set for ¥432 (including tax)
- 6-piece set for ¥1,188 (including tax)
- 9-piece set for ¥1,728 (including tax)

Please note that the treat contains honey and should not be given to infants under one year of age.

Where to Buy

The Castella Biscuit will be available at the Sweets PATIO located inside the New Osaka Station, starting March 2, 2026, until an unspecified end date. For more details, visit their website for location maps and additional store information.

About Nagasaki Do

Headquartered in Osaka’s Shinsaibashi area, Nagasaki Do is known for its quality Japanese and Western sweets. Celebrating over 107 years, the company continues its tradition through various brands, including Kurofune and Zen Kashaoin, adapting to consumer trends and preferences while honoring their rich history. The business originally began in Nagasaki in 1919 and expanded to Osaka in 1924 under the leadership of founder Genshirō Araki, who established a kiln and shared his passion for confectionery craftsmanship.