Miso-Glazed Sweet Potato Mash with Thyme

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Creamy mashed sweet potatoes infused with umami miso and fresh thyme. This japanese-american-inspired vegetarian (gluten-free, vegan-friendly) ready in about 30 minutes pairs (about 4 medium) sweet potatoes, white miso paste, unsalted butter for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 240 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

★ 3.4 (14 ratings) Prep: 10 min Cook: 20 min Serves 4 Japanese-American cuisine 240 cal/serving
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Ingredients

Instructions

  1. Step 1: Peel and dice sweet potatoes into 1-inch cubes. Place in a pot, cover with cold water, and bring to a boil over medium-high heat; cook for 15-18 minutes until fork-tender.
  2. Step 2: Drain potatoes thoroughly, reserving 1/4 cup cooking water. Return potatoes to the pot.
  3. Step 3: Add miso paste, butter, maple syrup, salt, and thyme to the potatoes. Mash with a potato masher until smooth, adding reserved cooking water 1 tsp at a time until creamy.
  4. Step 4: Taste and adjust salt or maple syrup if needed. Serve warm, garnished with extra thyme.

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Frequently asked questions

How long does Miso-Glazed Sweet Potato Mash with Thyme take to make?

Total time is about 30 minutes (10 min prep + 20 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Miso-Glazed Sweet Potato Mash with Thyme?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep white miso paste from drying out.

Can I substitute ingredients in Miso-Glazed Sweet Potato Mash with Thyme?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Miso-Glazed Sweet Potato Mash with Thyme for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Miso-Glazed Sweet Potato Mash with Thyme gluten-free?

Yes — this recipe is tagged gluten-free, vegan-friendly based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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