2 Amazing Methods On How To Cook Okinawan Sweet Potato Perfectly

2 Amazing Methods On How To Cook Okinawan Sweet Potato Perfectly

Do you want to try some Okinawan sweet potatoes but don’t know how to cook them? I had the same problem once when my friend suggested that I give it a try. Actually, they taste sweet and soft when cooked, that’s why they became my instant favorites.

I was greatly enamored by the Okinawan sweet potato after I learned that it contains high levels of antioxidants.

It is the same antioxidant, anthocyanin, which gives its flesh that brilliant purple color similar to blueberries and red cabbage. After a long, enduring research, I have discovered three ways on how to cook Okinawan sweet potato perfectly. Curious? Read on below.


What You’ll Need

Okinawan sweet potatoes

The Okinawan sweet potatoes have a beige colored skin but a violet-purple flesh. Once cooked, they have a sweet taste and a creamy texture. Like any other sweet potatoes, they have a low glycemic index and high content of fiber.

To choose for the best Okinawan sweet potatoes, look for those that are firm and free from soft or brown spots. Avoid those that have wrinkled skins. It is also best to choose the medium-sized ones.



You need a good 5-inch knife to peel and cut your Okinawan sweet potatoes for cooking method

You also need it for cutting their ends before serving in cooking method. What I’m using is a 5-inch santoku knife which is quite versatile in chopping, cutting, and peeling the sweet potatoes.

Kitchen cooking mitts

You may need a pair of kitchen cooking mitts to protect your hands when you’re handling the hot casserole dish or the hot stockpot.

When you remove the casserole dish from the oven, make sure that you use the mitts. Any type of mitts will do just as long as it fits right on your hands.

Additional Items Needed (For Cooking Method 1)

 A stockpot of cold water


You need a stockpot to boil your Okinawan sweet potatoes. Make sure that the capacity of your stockpot is enough to carry the volume of all your tubers. Use any clean water you have at home.


To drain the excess water from the boiled Okinawan sweet potatoes, use a colander. I prefer a stainless steel colander over the plastic kind because it endures better against the heat. It is also more sturdy and strong.

Optional Items

  • Potato Masher

If you like to mash the boiled Okinawan sweet potatoes, use a potato masher. Alternatively, you can use a large fork to mash the boiled tubers but this may take time and less convenient than an actual potato masher.

  • Coconut milk

To create that smooth and perfect mashed sweet potatoes, you need coconut milk. I prefer buying the ready-to-use coconut milk than making my own at home because it is more convenient. Although you get the natural taste of a freshly extracted coconut milk, it takes time and effort.

  • Spices

To bring more flavor into your mashed Okinawan sweet potatoes, use cinnamon, salt, and pepper. The sweet-spicy taste of cinnamon enhances the creamy taste of Okinawan sweet potatoes. The salt and pepper are your usual ingredients for additional taste.

Additional Items Needed (For Cooking Method 2)

  • Glass casserole dish with lid

You need a casserole dish to serve as the container for the Okinawan sweet potatoes in the oven. Make sure that it has a lid so you can close the dish for that great steaming effect.

Alternatively, you can use a ceramic bakeware but make sure that it’s free from any heavy metals.

  • Nutmeg (optional)

Nutmeg is a great option for enhancing the flavor of your baked Okinawan sweet potatoes. It has a nutty, sweet taste that makes it very distinctive. You may use about a pinch of ground nutmeg on your sweet potatoes before serving.

Step-by-Step Instructions

Cooking Method 1: Boiling the Okinawan Sweet Potatoes

The best way to keep their antioxidants is to boil them. In this method, they are boiled for making a smashed sweet potato.

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3. Mash and add coconut milk and spices

In the same stockpot, return the boiled potatoes and mash it with a potato masher. While mashing, add in coconut milk and spices. Mix well until everything is well incorporated.

Cooking Method 2: Baking the Okinawan Sweet Potatoes

This method will bake your tubers in the oven healthily without the extra fat from vegetable oil and without the danger of high heat.

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1. Preheat the oven

Since cooking starchy foods like, the Okinawan sweet potato on high heat may lead to the development of a potential carcinogen known as acrylamide, you need to bake the sweet potatoes at lower heat.

This may take time but you don’t want to risk yourself to health hazards, do you? So preset the oven at 275 degrees Fahrenheit for about 10 minutes.

Tips from the Experts

Keep the skin on

NutritionFacts.org suggests keeping the skin on of Okinawan sweet potatoes when cooking. The skin has almost ten times the antioxidant potency as the flesh.

It also contains fiber which can be great for your digestive system. However, this may only apply to organically grown potatoes because the commercially grown one may contain chemicals.

Select fresh Okinawan sweet potatoes

Recipetips.com recommends selecting the firm and medium sized Okinawan sweet potatoes. Avoid those with wrinkled skins, blemishes, or mushy spots. They should not have a damp smell. For even cooking, it is best to choose potatoes with the same size.

Store them at room temperature

Whole Foods Market specifies the storage of sweet potatoes at room temperature. Make sure that the container where you’re placing has good ventilation. As much as possible, use them after buying, but you can use them not later than one week.

Try to Cook Some Okinawan Sweet Potatoes Today!

Now that you know how to cook Okinawan sweet potato perfectly, make sure that you incorporate it in your diet as it offers a high antioxidant content. You can either bake it in the oven or boil it to make a mashed potato.

Remember not to cook it over high heat to prevent the formation of acrylamide, a potential carcinogen.