Loong soup is a special soup whose ingredients are poke and peeled banana collected in the forests of Hoa Binh. Banana tree are cut from the depth forest and then peeled to collect the inside part. This peeled part will be sliced into tiny, mixed with salt to demolish its acid taste then cooked with piglet and unique ingredients of the province : burned Dổi nuts and sliced Lốt leaf. This dish is cool and sweet that may make gourmets keep digging in.