Kuri Kinton (Manisan Kacang Kastanye dan Ubi Jalar)

Bahan-bahan (6 porsi)

• 1.1 lb Japanese sweet potato (Satsumaimo)
• 1 jar kuri kanroni (chestnuts in heavy syrup)
• ½ cup sugar
• ½ tsp Diamond Crystal kosher salt
• 3 Tbsp syrup from kuri kanroni
• 1 Tbsp mirin
• 2 kuchinashi no mi (dried gardenia pods)