Miso Baked Sweet Potatoes

six baked sweet potato halves on a black cast iron skillet

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I love these Miso Baked Sweet Potatoes. The miso glaze is Japanese inspired and sweet potatoes are a perfect pairing for it.

six miso baked sweet potato halves on a black cast iron skillet

What is Miso?

Miso is a fermented paste made from soybeans, salt, and grain. The paste is similar in texture to peanut butter. and the taste is salty, savory, and umami (meaty). It’s a common Japanese condiment and a versatile one.

Miso soup is probably the most well-known use of miso because Japanese restaurants usually serve it as a first or second course to a meal. But miso paste has many other uses. You can use it in glazes for vegetables, like this miso-glazed baked sweet potato recipe, or on meat, fish, or chicken. You can also use miso paste in sauces, salad dressings, and dips.

A pan of roasted sweet potatoes on a table

Is Miso Gluten-Free?

The type of grain that a particular miso paste is made from determines whether it is gluten-free or not. Some of the grains that are used to make miso are barley, wheat, and rye, which are obviously not gluten-free. But you can also find rice, buckwheat, and millet-based miso pastes, which are gluten-free. 

If you cannot eat gluten, it’s important to look for a certified gluten-free miso paste. Get more info here: Miso Paste: Gluten and Soy Free Alternatives

black cast iron pan with 4 miso baked sweet potato halves and a serving dish with two sweet potato halves

What Colour Miso Paste Should I Use?

In North America, the most commonly available varieties of miso paste are light (or white) and dark (or red). Light miso tends to be lighter and sweeter, while dark miso is saltier and stronger flavoured, due to a longer fermentation time and a higher concentration of soybeans.

For the sweet potato glaze in this recipe, you can use either light or dark miso. Regardless of which miso paste you use, it will still be delicious. I used dark miso because I find that it’s a perfect foil for the sweetness of the sweet potato.

A pan of food on a grill

Where Can I Buy Miso Paste?

You can usually find miso paste at most Asian groceries, especially Japanese groceries. You can also find it in many health food stores, and in grocery stores, where you can find it near the tofu products section. 

Two cast iron serving dishes, each with two halves of miso baked sweet potatoes

How To Store Miso Paste?

Store miso paste, tightly sealed, in the fridge. Miso paste is fermented, so it will keep for a fairly long time, even up to a year. Be sure to make note of the best before date on the package. So, if you buy some miso paste for this recipe, you will have plenty of time to use it in all kinds of other recipes, like this easy and delicious Vegetable Miso Soup

Two pans of food on a table

What Kind of Sweet Potatoes should I Use? 🍠 

I used regular orange-fleshed sweet potatoes in this recipe. However, if you are able to find some beautiful purple-fleshed sweet potatoes, or a white-fleshed Japanese sweet potato, use them by all means.

Two pans of food on a table with a fork

Can I Make This Recipe Ahead? 

Yes, you can make this recipe ahead. Just bake the sweet potatoes and mix up the miso glaze. When you are ready to use them, reheat the potatoes in a low oven, then slice, apply your glaze and broil.

Two pans of food with two forks

What To Serve With Miso Baked Sweet Potatoes

These sweet potatoes are a filling and tasty lunch served with just a green salad. They can also be a perfect side dish, especially for Asian inspired dishes like Grilled Asian Salmon Kebabs or Hoisin Meatballs – Asian Style Chicken Meatballs

Or, if you can find little mini sweet potatoes like these ones that I’m using, they make delicious appetizers, too. 

Baked yams in a pan with a fork


six baked sweet potato halves on a black cast iron skillet

Miso Baked Sweet Potatoes

A Miso glaze transforms these simple baked sweet potatoes into a dinner party-worthy side dish or a light meal on its own.
5 from 5 votes
Prep Time 5 mins
Cook Time 40 mins
Total Time 45 mins
Course Side Dish
Cuisine Japanese, Vegetarian
Servings 4
Calories 182 kcal


  • 4 small sweet potatoes or 2 medium
  • 1 tbsp miso paste
  • 1 tbsp coconut oil
  • 1 tbsp sriracha
  • 1 tbsp soy sauce
  • 1 tbsp honey
  • 1 tsp sesame oil
  • 1 tsp dried ginger
  • 2 scallions sliced thinly
  • toasted sesame seeds


  • Preheat oven to 400°
  • Scrub sweet potatoes a prick them all over with a fork.
  • Put sweet potatoes on a baking sheet or oven-safe skillet.
  • Bake for 40 minutes, or until fork-tender. (If using larger potatoes, baking time will be longer)
  • In a bowl, whisk together the miso paste, coconut oil, sriracha, soy sauce, honey, sesame oil, and ginger.
  • Remove sweet potatoes from the oven. Turn off the oven, and turn on the broiler to high.
  • Cut sweet potatoes in half lengthwise and return to the baking sheet, cut sides up.
  • Brush the miso mixture generously over each sweet potato half
  • Return the pan to the oven and broil until sweet potatoes begin to caramelize about 5 minutes.
  • Remove pan from the oven and top each sweet potato half with scallions and garnish with sesame seeds.


Make these gluten-free by using a gluten-free miso paste, and gluten-free soy sauce.
Substitute coconut sugar for the honey to make this vegan
Bake the sweet potatoes ahead and reheat them when you are ready to make the recipe.


Calories: 182kcalCarbohydrates: 33gProtein: 3gFat: 5gSaturated Fat: 3gSodium: 569mgPotassium: 473mgFiber: 4gSugar: 10gVitamin A: 18503IUVitamin C: 7mgCalcium: 43mgIron: 1mg
Keyword baked sweet potatoes, miso paste, sweet potatoes
Tried this recipe? What changes did you make?Let us know how it was!

A photo of sweet potato halves on a plate, with text overlay


10 thoughts on “Miso Baked Sweet Potatoes

  1. For all of those who say this looks and sounds like this would be good so they’re going to try them, WHAT ARE YOU WAITING FOR.? These are better than you think they will be. I had a Japanese yam and a sweet potato, I baked them together and they were both awesome.
    Thanks for a great recipe.

  2. I just love the flavours in these, Colleen! What a fabulous idea – I think the whole family would enjoy this. Thanks so much for sharing!

  3. These sweet potatoes are just as beautiful as they are scrumptious! Thank you so much for sharing this fabulous, healthy recipe.

  4. I’ve never thought of pairing miso with sweet potato but after seeing this I’m totally giving it a try!!

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