Mashed sweet potatoes are a beloved comfort food that gets a savory twist in this recipe with the addition of rich, umami-packed miso butter. Whether you’re entertaining for the holidays or simply looking for a quick weeknight side, these mashed sweet potatoes with miso butter will elevate your meal and impress your guests.

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Benefits of Mashed Sweet Potatoes with Miso Butter
Mashed sweet potatoes are not only delicious but also packed with nutrients. The sweetness of the potatoes is beautifully balanced by the rich, savory miso butter, creating a side dish that is both comforting and nourishing. Here’s why you’ll love this dish:
- Rich in Vitamins: Sweet potatoes are an excellent source of vitamin A, potassium, and antioxidants, making them a healthy addition to any meal.
- Plant-Based: This recipe is perfect for anyone following a plant-based diet. The addition of miso paste adds extra flavor without any animal products.
- Low Fat & Gluten-Free: Enjoy this creamy mashed sweet potato recipe with peace of mind, knowing it’s naturally dairy-free and gluten-free.
How to Make Mashed Sweet Potatoes with Miso Butter
This recipe is incredibly simple and quick to make. With just a few ingredients, you can whip up a creamy and flavorful side dish that will leave everyone asking for the recipe.
Step-by-Step Instructions for Making Mashed Sweet Potatoes with Miso Butter
- Steam the Sweet Potatoes: Peel and cut the sweet potatoes into 1-inch pieces. Place them in a steamer basket over a pot of boiling water and cook until fork-tender, which should take about 30 minutes.
- Prepare the Miso Butter: While the potatoes are steaming, mix softened butter with miso paste and black pepper. Set aside.
- Mash the Sweet Potatoes: Once the sweet potatoes are tender, mash them using a potato masher, food processor, or blender. For a chunkier texture, you can hand-mash them.
- Mix in the Flavor: Add vegetable broth (or milk of choice), salt, and the remaining softened butter. Stir everything together until smooth and creamy.
- Top with Miso Butter: Transfer the mashed sweet potatoes to a bowl and immediately top with the prepared miso butter. The heat from the potatoes will melt the butter, creating a smooth, savory topping. Garnish with fresh thyme leaves for a beautiful presentation.
Variations of Mashed Sweet Potatoes with Miso Butter
This recipe is versatile and can be customized based on your preferences or dietary needs. Here are a few ideas to make this dish your own:
- Dairy-Free: Use unsweetened almond milk or coconut milk instead of vegetable broth for a completely dairy-free version of mashed sweet potatoes.
- Sweetened Version: For a slightly sweeter twist, add a drizzle of maple syrup or brown sugar to the mashed sweet potatoes before serving.
- Spicy: Add a little sriracha or chili flakes to the miso butter for an extra kick of heat.

FAQs
Yes, you can prepare and mash the sweet potatoes ahead of time. Store them in an airtight container in the refrigerator for up to 2 days. When ready to serve, reheat them on the stove and top with freshly made miso butter.
Miso paste is typically available in the refrigerated section of most grocery stores, near the tofu. If you’re near an Asian market, you’ll find a wider variety of miso paste at more affordable prices.
Related recipes
For more side dish inspiration, check out these other delicious recipes:
- If you’re a fan of mashed potatoes, you may love these crispy breakfast potatoes as another tasty side dish.
- For a fun and easy breakfast, try these crescent roll breakfast recipes.
- Looking for an alternative to traditional mashed potatoes? A cheesy breakfast pizza could be a fun twist to your morning routine.

Mashed Sweet Potatoes with Miso Butter
- Total Time: 40 minutes
Description
Mashed sweet potatoes are a beloved comfort food that gets a savory twist in this recipe with the addition of rich, umami-packed miso butter. Whether you’re entertaining for the holidays or simply looking for a quick weeknight side, these mashed sweet potatoes with miso butter will elevate your meal and impress your guests.
Ingredients
- 4 large sweet potatoes
- 2 tablespoons miso paste
- 4 tablespoons butter (or dairy-free alternative)
- 1/4 cup vegetable broth
- Salt to taste
- Fresh thyme leaves for garnish
Instructions
- Peel and cut the sweet potatoes into 1-inch pieces. Steam the potatoes over boiling water for about 30 minutes until fork-tender.
- While the potatoes are steaming, mix softened butter with miso paste and black pepper in a separate bowl.
- Once the sweet potatoes are tender, mash them using a potato masher or a food processor for a smoother texture.
- Add vegetable broth and the remaining butter to the mashed sweet potatoes, stirring until smooth and creamy.
- Transfer the mashed sweet potatoes to a bowl and top with the miso butter, letting the heat melt it into the potatoes.
- Garnish with fresh thyme leaves and serve warm.
Notes
You can make this dish dairy-free by using plant-based butter and a dairy-free broth.
- Prep Time: 10 minutes
- Cook Time: 30 minutes

Final thoughts
Mashed sweet potatoes with miso butter are the perfect side dish for any meal. The naturally sweet and creamy potatoes are complemented by the rich, umami flavor of miso butter, making this recipe a favorite for both holiday dinners and weeknight meals. Not only is this dish healthy and versatile, but it also adds a unique twist to the classic mashed potato recipe. Don’t forget to experiment with variations to suit your taste and dietary needs.
By following these simple instructions and using quality ingredients, you’ll have a delicious side dish in no time. Whether you’re preparing a holiday feast or a casual dinner, these mashed sweet potatoes will quickly become a family favorite.
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