Hey there, friends!
Are you ready to try something delicious? I’ve got a special treat for you today.
I’m sharing my recipe for air fryer Japanese sweet potatoes, aka Murasaki.
These beauties are sweet, creamy, and super easy to make in your air fryer.
You’ll love how quick and tasty they are!
Let’s dive in and get cooking!

Ingredient Substitutions
Japanese sweet potatoes can be replaced with regular orange sweet potatoes or purple sweet potatoes. While the flavor will be slightly different, these alternatives offer similar textures and nutritional benefits. Adjust cooking time as needed, as Japanese sweet potatoes tend to be denser.
Canola oil spray can be substituted with olive oil or avocado oil spray. These oils provide similar functionality for air frying while offering different flavor profiles and potential health benefits. Use the same amount of spray as called for in the original recipe.
Toasted black sesame seeds can be swapped with white sesame seeds, pumpkin seeds, or finely chopped nuts like almonds or pecans. These alternatives add a similar crunchy texture and nutty flavor while providing various nutritional benefits. Adjust the quantity to taste, as some options may have stronger flavors than black sesame seeds.
| Preparation Time | 10-15 minutes |
| Cooking Time | 30 minutes |
| Total Time | 40-45 minutes |
| Level of Difficulty | Easy |
Estimated Nutrition
Estimated nutrition for the whole recipe (without optional ingredients):
- Calories: 220-250
- Protein: 4-6 g
- Fat: 2-3 g
- Carbohydrates: 50-60 g
Ingredients
- 1 tsp canola oil (or other neutral oil like grapeseed)
- 2 Japanese sweet potatoes (about 12 oz total, peeled and sliced into 1/2-inch rounds)
- 1/2 tsp toasted black sesame seeds
Step 1: Clean and Prepare the Sweet Potatoes
Start by washing the sweet potatoes under cold running water.
Use your hands to scrub them thoroughly, removing any dirt or debris.
Once clean, pat the sweet potatoes dry with a kitchen towel or paper towel.
Using a metal fork, poke several holes into each sweet potato to allow steam to escape during cooking.
Step 2: Air Fry the Sweet Potatoes
Place both Japanese sweet potatoes in the basket of your air fryer.
Spray them with canola oil until they are evenly coated.
Set the air fryer to 400ºF and cook for about 30 minutes.
Check for doneness by inserting the tip of a paring knife or cake tester into the potatoes; it should glide in easily when they are fully cooked.
Step 3: Serve and Enjoy
Enjoy the sweet potatoes while they are hot or warm.
In traditional Taiwanese fashion, they can be split in half by hand and eaten as is.
You may choose to peel the skin as you eat or opt to eat the skin, depending on your preference.
Alternatively, cut each sweet potato in half lengthwise and sprinkle with toasted black sesame seeds for added flavor, if desired.

