Authentic Miso-Glazed Eggplant with Shio Koji

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A Japanese-inspired dish where eggplant is marinated in shio koji (salted rice koji) for depth, then glazed with miso and mirin for a sweet-savory umami finish. This japanese-inspired asian (gluten-free) ready in about 75 minutes pairs medium, 1-inch thick slices eggplant, shio koji, white miso paste for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 210 calories and feeds 2, 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.

★ 4.1 (9 ratings) Prep: 65 min Cook: 10 min Serves 2 Japanese cuisine 210 cal/serving
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Ingredients

Instructions

  1. Step 1: Rub 2 medium eggplant slices with 1/4 cup shio koji, coating evenly, and let marinate at room temperature for 1 hour to develop umami depth.
  2. Step 2: Whisk together 2 tbsp white miso paste, 1 tbsp mirin, and 1 tsp rice vinegar in a small bowl until smooth, then brush half over marinated eggplant.
  3. Step 3: Heat a grill pan over medium-high heat, add eggplant slices, and cook for 4-5 minutes per side until grill marks appear and edges are slightly charred.
  4. Step 4: Brush remaining miso glaze on both sides, then continue cooking for 2 minutes until sticky and glossy.
  5. Step 5: Transfer to a plate, sprinkle with 1 tbsp toasted sesame seeds and 2 thinly sliced green onions, and serve immediately.

Equipment for this recipe

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Frequently asked questions

How long does Authentic Miso-Glazed Eggplant with Shio Koji take to make?

Total time is about 75 minutes (65 min prep + 10 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 Authentic Miso-Glazed Eggplant with Shio Koji?

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 shio koji from drying out.

Can I substitute ingredients in Authentic Miso-Glazed Eggplant with Shio Koji?

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 Authentic Miso-Glazed Eggplant with Shio Koji for a different number of people?

The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). 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 Authentic Miso-Glazed Eggplant with Shio Koji gluten-free?

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

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