Yuraku Black Thunder

Chocolate cookie crunch bar Β· Yuraku Β· Chocolate & candy

must-try

Why it's worth it

A cult konbini bar that hit 100 million units a year after a gymnast endorsed it. It costs next to nothing, comes in endless limited flavors, and no Czech bar has the same crumbly cookie crunch.

Taste

Small, very crunchy bar of cocoa cookie pieces and rice puffs in milk chocolate; sweet, crumbly, not rich

Why this rating

You can’t get this at homenot sold in Czechia β€” distinctly local
Reviewers rave about it2 sourced review quotes on file
A local icona well-known local classic
Easy to findstocked in mainstream chains at everyday prices

Scores 8 of 10 on our published rubric.

Nutrition

Nutritional values per 100 g

Energy value472 kJ Β· 113 kcal
Fats6.1 g
Carbohydrates13 g
Protein1.4 g
Salt0.2 g

Source: Open Food Facts label data (may lag pack reformulations).

Where & what you'll pay

7-ElevenFamilyMartLawsonAEONDon Quijote€EAN 4903032242409

If you know Czech shelves

No close CZ analog; a crumbly cookie-and-rice-puff chocolate bar

Sources

  • β€œBlack Thunder (ブラック・ァンダー), a chocolate-covered biscuit-rice puff combo from Yuraku Confectionery.”

    www.japanesefoodguide.com (blog)

  • β€œfrom 2008 to 2009, total sales jumped from just under 50 million units to the landmark number of 100 million”

    en.wikipedia.org (reference)

Curated 2026-10-01. Image: Open Food Facts contributors, CC-BY-SA.