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Yuraku Black Thunder Chocolate Bars 30.5 Ounce Bag
In-store pricing snapshot
Last known warehouse price ยท Apr 24, 2026. Currently out of stock.
* Prices shown are for Costco members only.
Yuraku Black Thunder is a popular Japanese chocolate candy bar featuring bite-sized pieces. Each bar contains a cocoa-flavored cookie base mixed with crunchy biscuit pieces, all coated in dark milk chocolate. The texture combines a satisfying crunch from the rice crisps and cookie pieces with smooth chocolate coating. Made in Japan by Yuraku Confectionery Company, this product has become famous for its slogan "Delicious taste in a flash of lightning" and is particularly popular among university students and young adults in Japan.
This 30.5-ounce bag contains approximately 43 individually wrapped mini bars, perfect for sharing or portioning. Each mini bar is a bite-sized treat that balances cocoa bitterness with chocolate sweetness. The candy was first introduced in 1994 and has since become one of Japan's best-selling chocolate bars, with over 100 million units sold annually.
Nutrition per serving (1 package, 20g): 130 calories, 7g fat (4.5g saturated), 0mg cholesterol, 21mg sodium, 16g carbohydrates (less than 1g fiber, 9g sugars), 1g protein. Contains sugar, wheat flour, vegetable oils (palm, sunflower, palm kernel, rapeseed, soybean, corn), cocoa powder, milk powders (skim and whole), fructose corn syrup, cocoa liquor, leavening agents, emulsifiers (soy lecithin, PGPR), salt, corn starch, and artificial flavors (vanillin, cocoa liquor, vanilla). Allergens: Contains milk, wheat, and soybeans. Product of Japan, manufactured by Yuraku Confectionery Company.