Experience a delightful twist on a classic comfort food with this Japanese mashed potato recipe. Infused with unique flavors, this dish combines the creamy texture of mashed potatoes with the umami richness of miso and soy sauce, creating a harmonious blend that will elevate your meal.
White miso paste and soy sauce are the standout ingredients in this recipe that may not be commonly found in every household. White miso paste, a fermented soybean paste, adds a subtle sweetness and depth of flavor. Soy sauce, a staple in Japanese cuisine, brings a savory umami taste. Both can be found in the international or Asian section of most supermarkets.
Ingredients for Japanese Mashed Potato Recipe
Potatoes: The base of the dish, providing a creamy and starchy texture when mashed.
Milk: Adds creaminess and helps achieve a smooth consistency.
Butter: Enhances the flavor and richness of the mashed potatoes.
Salt: Essential for seasoning and bringing out the flavors of the other ingredients.
White miso paste: A fermented soybean paste that adds a unique umami flavor and subtle sweetness.
Soy sauce: Adds a savory umami taste, enhancing the overall flavor profile of the dish.
Technique Tip for This Recipe
When mashing the potatoes, use a potato ricer or a food mill for an ultra-smooth texture. This prevents lumps and ensures the miso paste and soy sauce are evenly distributed, giving the dish a consistent flavor throughout.
Suggested Side Dishes
Alternative Ingredients
potatoes - Substitute with cauliflower: Cauliflower can be steamed and mashed to create a similar texture to mashed potatoes, making it a lower-carb alternative.
milk - Substitute with unsweetened almond milk: Unsweetened almond milk provides a similar creamy texture without the dairy, suitable for lactose-intolerant individuals.
butter - Substitute with olive oil: Olive oil can add a rich flavor and smooth texture, making it a healthier fat alternative.
salt - Substitute with soy sauce: Soy sauce can add a salty and umami flavor, reducing the need for additional salt.
white miso paste - Substitute with chickpea miso: Chickpea miso offers a similar umami flavor and can be used as a soy-free alternative.
soy sauce - Substitute with tamari: Tamari is a gluten-free alternative to soy sauce that provides a similar depth of flavor.
Other Alternative Recipes Similar to This Dish
How to Store / Freeze This Dish
- Allow the mashed potatoes to cool completely before storing. This prevents condensation, which can make the potatoes watery.
- Transfer the cooled mashed potatoes into an airtight container or a resealable plastic bag. Ensure you remove as much air as possible to maintain freshness.
- Label the container or bag with the date to keep track of its shelf life.
- Store the mashed potatoes in the refrigerator for up to 3-5 days. Reheat in the microwave or on the stovetop, adding a splash of milk to restore creaminess if needed.
- For longer storage, freeze the mashed potatoes. Spread them in a thin layer on a baking sheet and place in the freezer until solid. This prevents clumping.
- Once frozen, transfer the mashed potatoes to a freezer-safe container or bag. Squeeze out excess air and seal tightly.
- Label with the date and store in the freezer for up to 2 months.
- To reheat, thaw the mashed potatoes in the refrigerator overnight. Reheat gently on the stovetop or in the microwave, stirring occasionally and adding a bit of milk or butter to restore the desired consistency.
- For an extra touch of flavor, consider adding a bit more white miso paste or soy sauce during reheating.
How to Reheat Leftovers
Stovetop Method: Place the mashed potatoes in a saucepan over low heat. Add a splash of milk or cream to restore the creamy texture. Stir frequently to prevent sticking and ensure even heating. Once warmed through, serve immediately.
Microwave Method: Transfer the mashed potatoes to a microwave-safe dish. Add a small amount of milk or butter to keep them moist. Cover the dish with a microwave-safe lid or plastic wrap, leaving a small vent. Heat on medium power in 1-minute intervals, stirring in between, until hot.
Oven Method: Preheat your oven to 350°F (175°C). Spread the mashed potatoes in an even layer in an oven-safe dish. Cover with aluminum foil to prevent drying out. Bake for about 20-30 minutes, or until heated through. For a golden top, remove the foil for the last 5 minutes of baking.
Double Boiler Method: Place the mashed potatoes in a heatproof bowl. Set the bowl over a pot of simmering water, ensuring the bottom of the bowl does not touch the water. Stir occasionally until the potatoes are heated through. This method helps maintain the creamy texture without burning.
Slow Cooker Method: Transfer the mashed potatoes to a slow cooker. Add a bit of milk or butter to keep them moist. Set the slow cooker to low and heat for 1-2 hours, stirring occasionally. This method is great for keeping the potatoes warm for an extended period.
Best Tools for This Recipe
Saucepan: Used to boil the potatoes until they are tender.
Potato peeler: Essential for peeling the potatoes before cubing them.
Knife: Used to cube the peeled potatoes.
Cutting board: Provides a safe surface to cube the potatoes.
Colander: Used to drain the boiled potatoes.
Potato masher: Helps to mash the potatoes until they are smooth and creamy.
Measuring cup: Used to measure out the milk accurately.
Measuring spoons: Used to measure the butter, salt, miso paste, and soy sauce accurately.
Wooden spoon: Useful for stirring the ingredients together in the saucepan.
Serving bowl: Used to serve the mashed potatoes hot.
How to Save Time on Making This Recipe
Pre-boil potatoes: Cut and boil the potatoes in advance. Store them in the fridge until ready to use.
Use instant potatoes: For a quick fix, use instant mashed potatoes and mix in the miso paste and soy sauce.
Microwave method: Microwave the potatoes instead of boiling. It saves time and energy.
Pre-measure ingredients: Measure out the milk, butter, salt, miso paste, and soy sauce before starting.
Use a potato ricer: A potato ricer makes mashing quicker and results in smoother mashed potatoes.

Japanese Mashed Potato Recipe
Ingredients
Main Ingredients
- 4 medium Potatoes peeled and cubed
- 1 cup Milk
- 2 tablespoon Butter
- 1 teaspoon Salt to taste
- 1 teaspoon White Miso Paste
- 1 tablespoon Soy Sauce
Instructions
- 1. Boil the potatoes in a saucepan until tender, about 15-20 minutes.
- 2. Drain the potatoes and return them to the saucepan.
- 3. Add the milk, butter, salt, miso paste, and soy sauce.
- 4. Mash the potatoes until smooth and creamy.
- 5. Serve hot and enjoy!
Nutritional Value
Keywords
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