Pan-Seared Okinawan Sweet Potato and Miso Soup
A warming soup featuring Okinawan purple sweet potatoes pan-seared to enhance their natural sweetness, immersed in a delicate miso broth. This japanese-inspired soups (vegetarian) ready in about 35 minutes pairs white miso paste, liter dashi stock, stalks green onions, thinly sliced for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 120 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.
Ingredients
- 300 g Okinawan purple sweet potato, peeled and diced
- 3 tbsp white miso paste
- 1 liter dashi stock
- 2 stalks green onions, thinly sliced
- 1 tbsp sesame oil
- 2 cloves garlic, minced
- 1 tsp ginger, grated
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Instructions
- Step 1: Heat 1 tbsp sesame oil in a large saucepan over medium heat. Add 2 minced garlic cloves and 1 tsp grated ginger, sautéing for 1 minute until fragrant.
- Step 2: Add 300 g diced Okinawan purple sweet potato and pan-sear for 5 minutes, stirring occasionally until edges are slightly caramelized.
- Step 3: Pour in 1 liter dashi stock and bring to a gentle boil. Reduce heat to simmer and cook for 15 minutes until sweet potatoes are tender.
- Step 4: Remove a small amount of hot broth into a bowl and whisk in 3 tbsp white miso paste until smooth.
- Step 5: Stir the miso mixture back into the soup pot, heating gently for 2 minutes but not boiling to preserve flavor.
- Step 6: Serve garnished with 2 thinly sliced green onion stalks.
Frequently asked questions
How long does Pan-Seared Okinawan Sweet Potato and Miso Soup take to make?
Total time is about 35 minutes (10 min prep + 25 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 Pan-Seared Okinawan Sweet Potato and Miso Soup?
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 Pan-Seared Okinawan Sweet Potato and Miso Soup?
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 Pan-Seared Okinawan Sweet Potato and Miso Soup 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 Pan-Seared Okinawan Sweet Potato and Miso Soup vegetarian?
Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.
