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Japanese Sweet Potato Chips

These Japanese Sweet Potato Chips are crispy and flavorful! They make the perfect snack or side-dish at any time of year!
Prep Time10 mins
Cook Time10 mins
Course: Side Dish
Cuisine: Japanese
Keyword: potatoes, sweet potatoes
Servings: 2
Calories: 245kcal
Author: Lara


  • 1 large Japanese or regular sweet potato skin on, washed and thinly sliced
  • vegetable oil for frying
  • 2 tbsp. granulated sugar
  • 2 tbsp. mirin optional
  • 1 tbsp. soy sauce
  • 2 tsp. honey or maple syrup
  • 100 mL water (½ cup minus 1 tbsp) + extra for soaking potatoes
  • salt to taste
  • black sesame seeds optional
  • fresh parsley chopped, optional


  • Wash and thinly slice sweet potato using a slicer.
  • Place sliced potatoes in a large mixing bowl filled with water and soak for 5 minutes. Drain and pat dry using kitchen paper.
  • Heat at least 1cm of oil in a large pan until sizzling. Add sliced potatoes and fry until golden brown and crispy. Transfer to a wire rack or plate lined with kitchen paper to absorb extra oil.
  • Place sugar, mirin, soy sauce and honey in a large (clean) skillet. Add 100mL of water and stir to dissolve sugar and combine ingredients. Bring to a simmer.
  • Once the mixture sarts to bubble, add sweet potato chips and stir well to coat with sauce (1-2 minutes). Transfer back to a wire rack to drain excess sauce.
  • Serve with chopped fresh parsley or black sesame seeds. Season with salt to taste.


Calories: 245kcal | Carbohydrates: 60g | Protein: 3g | Fat: 1g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Sodium: 622mg | Potassium: 591mg | Fiber: 5g | Sugar: 30g | Vitamin A: 24118IU | Vitamin C: 4mg | Calcium: 54mg | Iron: 1mg