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Hoshi Imo (Japanese dried sweet potatoes)

Hoshi Imo (Japanese Dried Sweet Potatoes)

Hoshi Imo is a classic fall snack in Japan, allowing you to enjoy the natural sweetness of Japanese sweet potatoes. Its rich, concentrated flavor will leave you craving more with every bite.
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Prep Time: 7 minutes
Cook Time: 1 hour 3 minutes
Drying Period: 2 days
Total Time: 2 days 1 hour 10 minutes
Servings: 2

Ingredients
 
 

  • 1 Japanese sweet potato (satsumaimo) (optimal weight: 9-12 ounces / 250-350 g)

Instructions
 

  • Wash the sweet potato thoroughly to remove any dirt. Fill a steamer with water and heat it until it boils. Once boiling, add the sweet potato and steam it for about an hour. Alternatively, you can boil it for about an hour.
    hoshi imo_instruction-1
  • Remove the sweet potato from the steamer. Trim both ends and peel off the skin along with any brown parts inside. Cut it into your preferred size, about ⅓ inch (7-10 mm) thick.
    * I cut the sweet potato into bite-sized pieces, but you can also keep its natural shape by cutting it into large vertical slices, or cut it into easy-to-eat sticks—as long as each piece is about ⅓ inch (7-10 mm) thick.
    hoshi imo_instruction-2
  • Spread the sweet potato pieces on a wire rack or bamboo colander, making sure they don't overlap. Let them dry in the sun for 2 or more consecutive sunny days. Once they reach your desired level of firmness, they are ready to enjoy.
    Note: Store the pieces at night in a cool, well-ventilated place to prevent mold growth. Drying for 2 days results in a slightly softer texture (recommended), while drying for 3-5 days yields a firmer texture. If you want to keep insects away from the pieces, cover them with a net or similar material.
    hoshi imo_instruction-3

Notes

  • If you dry your sweet potato pieces in the sun for 2 days, you can store your hoshi imo in an airtight container in the refrigerator for up to 4 days. Drying them in the sun for 5 days will allow the hoshi imo to last for up to a week.

Nutrition

Calories: 208kcal Carbohydrates: 53.92g Protein: 2.33g Fat: 0.45g Saturated Fat: 0.04g Polyunsaturated Fat: 0.09g Monounsaturated Fat: 0.01g Sodium: 13.5mg Potassium: 735mg Fiber: 6.15g Sugar: 47.77g Calcium: 39.75mg Iron: 1.57mg
Author: Ryo Hikita (Umami Pot)
Cuisine: Japanese
Category: Desserts, Plant-Based, Traditional, Vegetable
Keyword: sweet potato
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