Japanese Sweet Potatoes w/ Miso Ginger Sauce

Roasted Japanese sweet potatoes caramelized in the oven, finished with a bright, savory miso-ginger sauce. Simple, clean, and packed with flavor.

Why You'll Love Japanese Sweet Potatoes w/ Miso Ginger Sauce

Tender roasted Japanese sweet potatoes paired with a tangy, umami-rich miso ginger sauce, finished with toasted sesame seeds for depth and texture.

Tips and Tricks

• Use small, even-sized sweet potatoes for consistent cooking.
• Caramelization happens faster when cut side is down.
• Whisk sauce again before spooning-it can separate as it sits.

Variations

• Add chili oil for heat.
• Use red miso for a deeper, saltier sauce.
• Top with chopped scallions for extra freshness

Substitutions

• Japanese sweet potatoes → orange sweet potatoes (flavor will be different but still works)
• Rice vinegar → apple cider vinegar
• Black sesame seeds → white sesame seeds

Best served with

• Grilled salmon or miso-marinated cod
• Steamed rice and sautéed greens
• As a vegetarian main with salad

How to Store Leftovers

• Refrigerate in airtight container for up to 3 days.
• Reheat in oven to restore crispness.

Japanese Sweet Potatoes w/ Miso Ginger Sauce

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Roasted Japanese sweet potatoes caramelized in the oven, finished with a bright, savory miso-ginger sauce. Simple, clean, and packed with flavor.

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Prep Time 15 minutes mins

Total Time 1 hour hr

Course: Appetizer, Side Dish, Vegetarian

Cuisine: Japanese-inspired

Calories: 7

Ingredients Equipment Method Nutrition

Ingredients

  

• 4 Japanese sweet potatoes ~6 oz each, scrubbed
• 1 clove garlic chopped
• 1- inch knob fresh ginger peeled and grated
• Few pinches sugar or 2 teaspoon mirin
• 1 heaping tablespoon white miso
• 1 tablespoon unseasoned rice wine vinegar
• 1 tablespoon light sesame oil or other neutral oil, plus more for pan
• 1 tablespoon toasted sesame oil
• 2 teaspoon toasted black sesame seeds for garnish

Equipment

• Sheet Pan
• Knife and cutting board
• Small bowl for sauce
• Mortar and pestle or microplane/grater

Method

 

Roast the Sweet Potatoes

1. Preheat oven to 425°F.
2. Poke holes in sweet potatoes.
3. Roast on sheet pan until fork tender, 45-50 minutes.

Make the Miso Ginger Sauce

1. In mortar, pound garlic and ginger until smooth.
2. Stir in mirin (or sugar), miso, vinegar, both sesame oils, and 1 tablespoon water until combined.

Finish Roasting

1. Halve sweet potatoes lengthwise. Place cut side down on sheet pan.
2. Drizzle lightly with sesame oil. Roast until golden brown.

Serve

1. Arrange on plate or platter. Spoon sauce over potatoes.
2. Garnish with toasted sesame seeds.

Nutrition

Calories: 7kcalCarbohydrates: 1gProtein: 0.2gFat: 0.01gPolyunsaturated Fat: 0.01gSodium: 1mgPotassium: 12mgFiber: 0.1gSugar: 0.04gVitamin A: 0.3IUVitamin C: 1mgCalcium: 6mgIron: 0.1mg

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