Baked Japanese Sweet Potatoes with Miso Tahini Butter Recipe

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I still recall the first time I pulled those steaming, glossy-skinned roots from the oven—Baked Japanese Sweet Potatoes with Miso Tahini Butter sitting hot, the edges caramelized to a deep amber. The aroma was a nutty, tangy whisper of fermented miso meeting creamy tahini. After testing this recipe half a dozen times, I discovered the sweet spot for baking and how a splash of water transforms the butter into a velvety ribbon. Let’s dive in and unpack everything I learned in my kitchen adventures.

Why You’ll Love Baked Japanese Sweet Potatoes with Miso Tahini Butter

  • Golden, crackly skins that hold silky flesh inside.
  • Miso tahini butter that melts into pockets, layering savory and sweet.
  • Simple pantry ingredients come together in under an hour.
  • Japanese sweet potatoes are an East Asian staple with naturally rich sweetness.

A Little Background

On a rainy autumn evening, I roasted my first batch of these potatoes. The kitchen filled with a nutty, toasted scent, and I realized that the ratio of miso to tahini was crucial. Testing note #1: poking holes six times rather than four prevents unexpected bursts in the oven.

Key Ingredients for Baked Japanese Sweet Potatoes with Miso Tahini Butter

  • Japanese Sweet Potatoes: naturally sweeter and denser than yams; scrub well.
  • Olive Oil: helps skins crisp up; avocado oil works too.
  • Sea Salt: enhances sweetness; divide between potato rub and finishing sprinkle.
  • Vegan Butter: forms the creamy base; room temperature for easy whipping.
  • Tahini & White Miso: tahini adds richness, miso brings umami depth; use mellow white miso.

How to Make Baked Japanese Sweet Potatoes with Miso Tahini Butter

  1. Preheat oven to 425°F (220°C). Line a rimmed baking sheet with parchment paper.
  2. Scrub 4 medium Japanese sweet potatoes and pat dry. Pierce each potato 6–8 times with a fork.
  3. Rub each with 1 tablespoon olive oil and sprinkle with ¼ teaspoon sea salt. Arrange on the sheet, skin-side up.
  4. Bake for 45–50 minutes until skins are crackly and a knife glides through the flesh.
  5. While they roast, combine in a small bowl: 3 tablespoons vegan butter, 2 tablespoons tahini, 1 tablespoon white miso, 1 tablespoon maple syrup, 1 teaspoon rice vinegar, juice of ½ lemon, dash black pepper.
  6. Stir in 1–2 tablespoons water, one at a time, until the butter becomes silky and pipeable.
  7. Remove potatoes, slice lengthwise and squeeze ends to fan open. Dollop 1–2 tablespoons miso tahini butter into each, letting it melt into the crevices.

rice cake recipe

Rice Cakes recipe: A Delicious and Healthy Snack Option

Jada Parker

To create the ideal rice cakes, it all starts with using quality ingredients. Here is everything that’s necessary for making simple yet delectable rice cakes.

No ratings yet
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Course Appetizer, Snack
Cuisine Asian, Korean-inspired
Servings 8 -10 rice cakes
Calories 180 kcal

Ingredients
  

  • 2 cups cooked rice preferably day-old rice for better texture
  • 1/4 cup all-purpose flour
  • 2 tablespoons cornstarch
  • 1 large egg
  • 1 tablespoon soy sauce
  • 1 teaspoon sesame oil
  • 1/2 teaspoon garlic powder
  • Salt and pepper to taste
  • 2 tablespoons vegetable oil for frying
  • Optional toppings: sesame seeds chopped green onions, or a drizzle of soy sauce

Instructions
 

  • Prepare the Rice: If using fresh rice, allow it to cool completely before using. For best results, use day-old rice as it holds together better when forming the rice cakes.
  • Make the Rice Cake Mixture: In a large mixing bowl, combine the cooled rice, all-purpose flour, cornstarch, egg, soy sauce, sesame oil, garlic powder, salt, and pepper. Mix thoroughly until the rice sticks together and forms a cohesive dough-like texture. If the mixture is too wet, add a little more flour or cornstarch to help it bind.
  • Shape the Rice Cakes: Take a small portion of the rice mixture (about 2 tablespoons) and form it into a small, flat cake. Repeat with the remaining mixture, shaping them into round or oval patties.
  • Heat the Oil: In a large skillet, heat the vegetable oil over medium heat. Once the oil is hot, gently place the rice cakes in the pan. Do not overcrowd the pan; cook in batches if necessary.
  • Fry the Rice Cakes: Fry the rice cakes for 3-4 minutes per side, or until golden brown and crispy. Use a spatula to flip them carefully.
  • Drain and Serve: Once crispy and golden on both sides, remove the rice cakes from the skillet and place them on a paper towel-lined plate to drain excess oil.
  • Garnish and Enjoy: Serve the rice cakes warm, topped with sesame seeds, chopped green onions, or a drizzle of soy sauce if desired.

Notes

Serving Suggestions

Serve your rice cakes as a main dish with a salad, as a snack with a dip, or even topped with a fried egg for a delicious breakfast. Pair them with sauces like avocado, salsa, or hummus for added flavor.

Nutrition

Serving: 2rice cakesCalories: 180kcalCarbohydrates: 27gProtein: 4gFat: 7gSaturated Fat: 1gPolyunsaturated Fat: 6gCholesterol: 40mgSodium: 320mgFiber: 1gSugar: 1g
Tried this recipe?Let us know how it was!

Pro Tips & Troubleshooting

  • Testing note #2: letting potatoes rest 5 minutes after baking intensifies their natural sugars.
  • If skins crack unevenly, rotate the pan halfway through for uniform heat.
  • Add a pinch of chili flakes to the butter for a spicy autumn twist.
  • To double, use two sheets—avoid crowding so air circulates around each potato.

Storage & Make-Ahead Guide

Let baked potatoes cool at room temperature no longer than 2 hours, then refrigerate in an airtight container up to 4 days. Reheat at 350°F (175°C) for 10–12 minutes or microwave on medium power until warm. Make miso tahini butter ahead and store separately in the fridge for up to 1 week—bring to room temperature before using. Always discard leftovers left out over 2 hours to ensure safety. Testing note #3: potatoes retain moisture best when wrapped in foil before storing.

Serving Suggestions

Serve these Baked Japanese Sweet Potatoes with Miso Tahini Butter alongside steamed greens or top with toasted sesame seeds and scallions for extra crunch. They pair beautifully with a crisp winter salad or as a cozy solo snack.

Frequently Asked Questions

  • How long should I bake Japanese sweet potatoes? Bake at 425°F (220°C) for 45–50 minutes until skins are crackly and flesh is tender.
  • Can I substitute yams for Japanese sweet potatoes? You can, but yams have higher moisture and may need extra bake time for caramelized edges.
  • How do I make miso tahini butter ahead of time? Whip ingredients and store in a sealed jar in the fridge for up to 1 week; bring to room temp before using.
  • What’s the best way to reheat baked sweet potatoes? Reheat in a 350°F oven for 10–12 minutes or microwave on medium power until heated through.
  • Is miso tahini butter vegan? Yes—use a plant-based butter and ensure your miso paste is free from additives like fish stock.
  • How can I tell when sweet potatoes are done? A knife should glide in with little resistance, and the skin will look wrinkled and slightly blistered.

Final Thoughts

These Baked Japanese Sweet Potatoes with Miso Tahini Butter have become my go-to for cozy nights in. I love how the miso tahini swirl hints at nutty complexity. Give them a try, tweak the butter flavors to your liking, and let me know how yours turn out in the comments below!

More Recipes You’ll Love

Baked Japanese Sweet Potatoes with Miso Tahini Butter

Baked Japanese Sweet Potatoes with Miso Tahini Butter

Tender roasted Japanese sweet potatoes topped with creamy miso tahini butter that melts into the fluffy flesh, blending savory umami and natural sweetness.
No ratings yet
Prep Time 10 minutes
Cook Time 45 minutes
Resting Time 5 minutes
Total Time 1 hour
Course Side Dish
Cuisine Japanese
Servings 4 servings
Calories 300 kcal

Ingredients
  

Potatoes

  • 4 medium Japanese sweet potatoes scrubbed and pierced 6–8 times
  • 1 tablespoon olive oil for rubbing
  • 0.25 teaspoon sea salt for rubbing

Miso Tahini Butter

  • 3 tablespoons vegan butter softened
  • 2 tablespoons tahini
  • 1 tablespoon white miso paste
  • 1 tablespoon maple syrup
  • 1 teaspoon rice vinegar
  • 0.5 lemon lemon juice juice of ½ lemon
  • 1 dash black pepper
  • 1 tablespoon water to thin, plus extra as needed

Instructions
 

Potatoes

  • Preheat oven to 425°F (220°C).
  • Scrub the sweet potatoes and pat dry, then pierce each 6–8 times with a fork.
  • Rub each potato with olive oil and sprinkle with sea salt, then arrange on a parchment-lined baking sheet.
  • Bake for 45–50 minutes until skins are crackly and a knife slides in with little resistance.

Miso Tahini Butter

  • While potatoes roast, whisk vegan butter, tahini, miso paste, maple syrup, rice vinegar, lemon juice, and black pepper in a bowl.
  • Add water one tablespoon at a time until the mixture reaches a silky, spreadable consistency.
  • Remove potatoes, slice lengthwise and squeeze ends to fan open. Dollop miso tahini butter into each and let it melt into the flesh.

Notes

Testing note #1: Poke 6–8 holes in each potato to prevent steam bursts during baking.
Testing note #2: Let potatoes rest 5 minutes after baking to deepen their natural sweetness.
Testing note #3: Wrap leftovers in foil before storing to retain moisture.

Nutrition

Serving: 1potatoCalories: 300kcalCarbohydrates: 50g
Keyword Baked Japanese Sweet Potatoes with Miso Tahini Butter, Japanese sweet potatoes, miso tahini butter, tahini, vegan butter
Tried this recipe?Let us know how it was!