Does anyone know what this is?

Does anyone know what this is?

I ate these today – there were three flavours (matcha, pumpkin and not sure what the last one was). They were brought to a taiko class by the instructor; he said that one of his other students brought them back from a trip to Japan. Possibly from Hokkaido area?

They were really tasty and I'd love to know if I can buy them online.