I tried 'Purple Sweet Potato Thunder' which has a perfect combination of the gentle flavor of purple sweet potato and the fragrant butter cookies, and it feels like eating a purple sweet potato tart.

' Purple Sweet Potato Thunder ', which uses 100% domestic purple sweet potato powder, will be available in convenience stores from Tuesday, August 27, 2024, as part of the Black Thunder series by Yuraku Confectionery. By combining butter cookies with burnt butter, you can enjoy a taste similar to 'purple sweet potato tart', so I tried eating it to see what it tastes like.

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On sale today!!!

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Made with 100% Japanese purple sweet potato powder! Enjoy the deliciousness of the original ingredients and the vibrant color.

Available for pre-order at convenience stores nationwide starting today, August 27th!
Enjoy the gentle sweetness and buttery aroma of 'purple sweet potato tart' pic.twitter.com/IreZe0VCg8

— Black Thunder [Official] (@Black_Thunder_) August 27, 2024

Purple potato thunder - Product lineup - Product information | Yuraku Confectionery
https://yurakuseika.co.jp/lineup/product_146.html

The packaging for 'Purple Sweet Potato Thunder' is based on a pale purple color and features pictures of purple sweet potatoes and purple sweet potato tarts printed on it.

Looking at the raw material names, in addition to wheat flour, chocolate, oil and fat processed foods, semi-chocolate, etc., it contains purple potato powder, butter, almonds, etc.

The calories are 102kcal per stick (19g).

I put it on a plate. The top is covered in purple chocolate made with 100% Japanese purple sweet potato powder, and you can see that it is filled with whitish butter cookies.

When you line up the purple potato thunder (left) with the regular black thunder (right), it looks like this. In addition to the clear difference in color, the purple potato thunder was slightly shorter and slightly wider.

Comparing the cross-sections, the Purple Sweet Potato Thunder has purple sweet potato chocolate on the inside as well as on the top, with plenty of whitish butter cookies inside. On the other hand, the regular Black Thunder has not only plain biscuits but also cocoa cookies inside, so there are a lot of dark parts inside.

When you eat it, the simple and gentle sweetness of the purple sweet potato flavor is combined with the crumbly texture of the butter cookies, which have a rich buttery aroma, giving the impression that you are indeed eating a purple sweet potato tart. It was a high-quality Black Thunder that gave you a taste of autumn a little earlier.

'Purple Potato Thunder' will be available at convenience stores nationwide from Tuesday, August 27, 2024, and will be available at supermarkets and drugstores nationwide from Monday, September 16. The suggested retail price is 54 yen (tax included) per piece.