When fried, pieces of Khau Xen will inflate and they taste really sweet on your tongue.

Khau Xen is made from many ingredients: violet or white glutinous rice or mixed with spiny bitter gourd (Gac fruit) to have yellowish color. (dienbien.tv.vn).

Khau xen is dried (baotainguyenmoitruong.vn).

Thai people in Muong lay are making Khau Xen (baotainguyenmoitruong.vn).

Khau Xen is a traditional snack of Thai people in Muong Lay, Dien Bien (baotainguyenmoitruong.vn).

Khau Xen is kind of similar to prawn cracker but chewier and not as easy to crack. Khau Xen can be made from many ingredients: violet blutinous rice, white glutinous rice or mixed with spiny bitter gourd  (Gac fruit) to have yellowish color or made from cassava tubers. When fried, pieces of Khau Xen will inflate and they taste really sweet on your tongue./.

Dienbien.gov.vn