Khoai deo is a speciality in Quang Binh province. Khoai deo are made from sliced, dried sweet potatoes Quang Binh most famous delicious sweet potato is a kind of big sweet potato which  has a sweet taste, are grown in sandy in farms in Hai Ninh, Quang Ninh, Quang Binh province. Quang Binh specialities – […]