Usually I make my mashed potatoes with sour cream. I’ve got to say, they’re delicious, boiling the potatoes in salted chicken stock gives extra flavor right from the start. And then, they’re given an extra boost with a healthy dose of sour cream.
But I wanted to mix things up a bit. Enter Miso and Roasted Garlic Mashed Potatoes. I left out the chicken stock from this recipe, to keep it vegetarian friendly. However, we’re still adding flavor to those taters by boiling them in heavily salted water. Once tender, they’re whipped together with the roasted garlic, miso paste and butter. The result? Umami heaven! Miso adds a buttery, salty, savory flavor to the potatoes, an awesome match with the roasted garlic!
Did you know that potatoes have tons of health benefits? They tend to get a bad reputation, but in fact they’ve got lots of great qualities:
- Potassium – Potatoes are a good source of potassium…more potassium than a banana.
- Vitamin C – Potatoes are an excellent source of vitamin C (45% of the DV), which is more vitamin C than one medium tomato (40% DV) or sweet potato (30% DV).
- Fiber – One medium potato with the skin contributes 2 grams of fiber or 8% of the daily value per serving.
- Vitamin B6 – Potatoes are a good source of vitamin B6 with one medium potato providing 10% of the recommended daily value.
- Iron – One medium potato provides 6% of the recommended daily value of iron.
Miso and Roasted Garlic Mashed Potatoes
- Total Time: 67 minutes
- Yield: Serves 6
- Diet: Omnivore, Vegetarian
Description
Creamy mashed potatoes get a flavor boost from roasted garlic and savory miso paste.
This simple side dish is perfect for any occasion.
Ingredients
- 1 head garlic
- 0.5 tsp extra-virgin olive oil
- 2 lbs (907 g) potatoes
- 2 tbsp white miso paste
- 2 tbsp butter
- 3 tbsp milk
- Salt and pepper
- Chives
Instructions
- Heat oven to 425°F (220°C).
- Slice the top off a garlic bulb to expose the cloves, drizzle with olive oil, wrap in aluminum foil, and bake until soft and golden, about 40 minutes.
- Remove from oven and let cool until able to handle; then squeeze the cloves into a bowl and set aside.
- Cut the potatoes into 1-inch cubes and place them in a large pot. Add enough water to cover, along with 2 tablespoons of salt. Bring to a boil, then lower heat and simmer uncovered for 10-12 minutes, or until easily pierced with a fork.
- Drain the potatoes in a colander.
- Place the hot potatoes in a mixing bowl and mix until smooth (about 1 minute).
- Slowly add garlic, miso, butter, and milk, gradually increasing speed and mixing for 1 minute.
- Switch to a whipping attachment and beat for 1 minute, or until fluffy.
- Season with salt and pepper to taste.
- Serve warm, topped with extra butter and chopped chives (if desired).
Notes
- For richer flavor, roast the garlic for an extra 10-15 minutes until deeply caramelized.
- If you don’t have white miso paste, substitute with a similar amount of light soy sauce or chicken broth for a subtle umami flavor.
- Store leftover mashed potatoes in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stovetop or in the microwave.
- Prep Time: 15 minutes
- Cook Time: 52 minutes
- Category: Side Dish
- Method: Roasting
- Cuisine: Japanese
Nutrition
- Serving Size: 1 cup
- Calories: 250
- Sugar: 5
- Sodium: 300
- Fat: 15
- Saturated Fat: 8
- Unsaturated Fat: 5
- Carbohydrates: 35
- Fiber: 3
- Protein: 5
- Cholesterol: 20
If you liked this, you are going to love these favorite potato recipes!
Rustic Hungarian Potatoes: Tócsi
Loaded Baked Potato Casserole with Broccoli and Cheddar
The Crispiest Smashed Potatoes
Greek Lemon Potatoes: Patates Lemonates
Frequently Asked Questions
What type of miso should I use for the mashed potatoes?
You can use either white miso for a milder flavor or red miso for a stronger taste, depending on your preference.
How long should I roast the garlic for this recipe?
Roast the garlic until it is golden brown and tender, which typically takes about 30-40 minutes at 400°F (200°C).
Is it necessary to peel the potatoes before boiling them?
Peeling the potatoes is optional; leaving the skins on adds extra fiber and texture to the mashed potatoes.

Two tablespoons of white miso sounded aggressive going in, and I almost halved it before tasting. Glad I didn’t. With the roasted garlic in there it came out balanced, not overpoweringly salty.
I really liked this one. The miso gives it such a deep umami flavor. Very unexpected – will def make again!
Thanks Foodie Mama, glad you liked it! It’s pretty dang good!
Glad you liked it Leah!