Black Thunder tempura appears for a limited time this Valentine’s Day
![](https://essential-japan.com/wp-content/uploads/2025/02/black-thunder-tempura-optimized.jpg)
Japan’s popular Black Thunder chocolate bar has partnered with noodle chain Hanamaru Udon to create a unique treat: Black Thunder Tempura.
This innovative dessert combines the familiar taste of Black Thunder with a crispy tempura coating.
![Black Thunder x Hanamaru Udon - Black Thunder Tempura Black Thunder x Hanamaru Udon - Black Thunder Tempura](https://essential-japan.com/wp-content/uploads/2025/02/image-21-optimized.png)
Black Thunder is a popular Japanese chocolate bar known for its unique combination of textures and flavors.
![A regular Black Thunder chocolate bar A regular Black Thunder chocolate bar](https://essential-japan.com/wp-content/uploads/2025/02/image-24-optimized.png)
It consists of a cocoa-flavored cookie bar mixed with Japanese-style rice puffs, all coated in a layer of milk chocolate.
![The contents of a Black Thunder bar The contents of a Black Thunder bar](https://essential-japan.com/wp-content/uploads/2025/02/image-25-optimized.png)
To keep things interesting for fans, Yuraku Confectionery has released numerous limited-edition and regional flavors of Black Thunder over the years, with this tempura version being possibly the most interesting version of Black Thunder yet!
Hanamaru Udon, known for its wide variety of tempura offerings, is featuring this limited-time item at ten of its locations from February 6th to 14th.
![Black Thunder Tempura Black Thunder Tempura](https://essential-japan.com/wp-content/uploads/2025/02/image-22-optimized.png)
The tempura batter is designed to complement the sweet and slightly bitter chocolate, creating an interesting textural and flavor contrast.
Normal Black Thunder chocolate bars are known for being incredibly cheap, with the manufacturer’s long standing suggested retail price of ¥30 only rising to ¥35 in 2023.
Each piece of Black Thunder Tempura is affordably priced at just ¥100 (approx. $0.65 USD / £0.52 GBP), staying true to Black Thunder’s reputation for value.
Participating Hanamaru Udon locations include:
- Aeon Mall Sapporo Hiraoka (Hokkaido)
- Sendai E-beans (Miyagi)
- Akasaka Hitotsugi-dori (Tokyo)
- Tsurumi Eki-mae (Kanagawa)
- Aeon Mall Nagoya Dome-mae (Aichi)
- Senba Shinsaibashi (Osaka)
- Aeon Mall Ayagawa (Kagawa)
- Takamatsu Hyogomachi (Kagawa)
- Matsuyama Takehara (Ehime)
- Aeon Mall Nogata (Fukuoka)
Due to its limited availability (only 30 pieces per day, per location), the Black Thunder Tempura is expected to be a popular item.
In addition to the in-store offering, Hanamaru and Black Thunder are running a social media giveaway.
![Hanamaru Udon x Black Thunder Giveaway Hanamaru Udon x Black Thunder Giveaway](https://essential-japan.com/wp-content/uploads/2025/02/image-23-optimized.png)
Two lucky winners will receive a Black Thunder Tempura-style blanket/cushion. – to enter, participants must follow the official Black Thunder or Hanamaru Twitter accounts and retweet the specified campaign tweets.
Source: Hanamaru Udon
Images: © Hanamaru Udon / Yuraku Confectionery