Black Sesame Black Bean Snack

Hello Maangchi !!
My mom’s friend recently came back from Korea and brought back these black bean snacks covered in black sesame seeds and I fell in love with them. Unfortunately my mom and friend don’t know how to make them and I tried looking for recipes everywhere, but could only find a place to buy them (http://item.gmarket.co.kr/Item?goodscode=726119396 and http://item.gmarket.co.kr/Item?goodsCode=951138000). I am unable to buy them, so I was hoping you would possibly know how to make them!

Thank you for your time!