Why Make This Recipe
Miso Butter Sweet Potatoes are a delightful and easy dish that brings together the sweetness of sweet potatoes and the umami flavor of miso. This recipe offers a unique twist on traditional roasted sweet potatoes. It’s perfect for a weeknight meal and can also impress guests at a dinner party. The combination of flavors makes it a must-try!
How to Make Miso Butter Sweet Potatoes
Ingredients
- 2-3 sweet potatoes (cut in halves or cubed)
- 2 tablespoons olive oil
- 2 teaspoons toasted sesame seeds
- 1-2 tablespoons scallions (chopped small)
- 4 tablespoons unsalted butter
- 1 tablespoon miso paste (sweet white miso paste)
- 1/16th teaspoon ground ginger (basically a very small pinch)
- few turns cracked black pepper
Directions
Preheat your oven to 425 degrees. This temperature helps to roast the potatoes perfectly, making them crispy on the outside and soft inside.
Prepare the Butter: In a small bowl, mix the unsalted butter, miso paste, ground ginger, and cracked black pepper until smooth. This mixture adds a savory, rich flavor to the sweet potatoes.
Prepare the Potatoes: Wash and cut the sweet potatoes into halves or cubes. Toss them in a bowl with olive oil, ensuring they are evenly coated.
Assemble: Spread the sweet potatoes on a baking sheet. Bake for about 25 to 30 minutes or until they are tender and slightly caramelized. When they are done, drizzle the miso butter over the hot sweet potatoes. Sprinkle with toasted sesame seeds and chopped scallions before serving.
How to Serve Miso Butter Sweet Potatoes
Serve Miso Butter Sweet Potatoes warm as a side dish or even as a main vegetarian dish. They pair nicely with grilled meats, fish, or can be enjoyed alone. Adding a sprinkle of extra scallions on top adds a nice touch.
How to Store Miso Butter Sweet Potatoes
If you have leftovers, store them in an airtight container in the refrigerator. They will last for about 3-4 days. Reheat in the oven or microwave until warmed through. The flavors may deepen over time, making them even more delicious.
Tips to Make Miso Butter Sweet Potatoes
- Make sure to cut the sweet potatoes into even sizes so they roast evenly.
- Feel free to adjust the amount of miso paste depending on how strong you want the flavor.
- Don’t skip on the toasted sesame seeds; they add a wonderful crunch and flavor.
Variation
You can easily add other vegetables like carrots or Brussels sprouts to the mix. Just adjust the cooking time as needed for the different veggies.
FAQs
Can I use a different type of miso?
Yes, you can use different types of miso, but sweet white miso provides the best balance of flavor for this dish.
Can I make this recipe vegan?
Absolutely! Substitute the unsalted butter with vegan butter or coconut oil and use a light miso for a vegan version.
How do I make these potatoes crispy?
Make sure to spread the sweet potatoes out in a single layer on the baking sheet. Overcrowding may result in steaming instead of roasting. Additionally, a bit of extra olive oil can help crisp them further.

Miso Butter Sweet Potatoes
Equipment
- baking sheet
- parchment paper
- small bowl
- whisk
- large bowl
Ingredients
Main Ingredients
- 2 medium sweet potatoes
- 4 tablespoons unsalted butter
- 2 tablespoons white miso paste
- 1 tablespoon maple syrup
- 1 teaspoon rice vinegar
- 1 teaspoon sesame seeds for garnish
- 2 green onions sliced, for garnish
Instructions
Preparation
- Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
- Wash and peel the sweet potatoes, then cut them into 1-inch (2.5 cm) cubes.
Cooking
- In a small bowl, whisk together the melted unsalted butter, white miso paste, maple syrup, and rice vinegar until smooth.
- In a large bowl, toss the sweet potato cubes with the miso butter mixture until evenly coated.
- Spread the coated sweet potatoes in a single layer on the prepared baking sheet.
- Roast for 25-30 minutes, flipping halfway through, until the sweet potatoes are tender and slightly caramelized.
Serving
- Transfer the roasted sweet potatoes to a serving dish.
- Garnish with sesame seeds and sliced green onions before serving.
