There are lots of Crunky sweets from Lotte, most are chocolate bars and similar but this is the Lotte Cruncky Chocolate Ice (ice cream)
This Japanese ice cream is pretty good. The ice cream in the middle is a really creamy and soft vanilla ice cream and the outer is chocolate that is not too sweet and has kind of like biscuit crumbs in the chocolate.
This is one of my sons favourite ice cream, it isn’t really expensive and you can get it at lots of stores.