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Who knew a humble eggplant could turn into such a delightful treat? This miso-glazed Japanese eggplant recipe is about simple steps leading to big flavors. Just slice, soak, glaze, and roast – no open fire needed. While the traditional way is to grill them, we’ve taken to the toaster oven for a quick and easy method that still locks in those incredible flavors.


A Little Bit About Japanese Eggplants

These slender veggies are not just pretty; they’re versatile too! You can grill, roast, or stir-fry them. Whether you’re making a sesame sauce dish, stuffing them, or glazing them with miso, they always bring something unique to the table with their tender skin and sweet insides.

The Good Stuff in Miso-Glazed Eggplant

This dish isn’t just tasty; it’s packed with goodness. Eggplants are great for your heart and full of vitamins, while the miso brings in probiotics for gut health. Just keep an eye on the sodium; remember, moderation is key!

Shiso Leaves: A Flavor Boost

Ever heard of shiso leaves? These aromatic herbs add freshness that perfectly balances the miso’s umami. There’s really nothing quite like them, and they make this dish truly sing.

Is this Japanese Eggplant Recipe Keto-Friendly?

This can be a keto delight with a simple swap: replace sugar with your favorite keto-friendly sweetener. Eggplants are already low-carb, so with this tweak, you’re all set for a keto feast.

Recipe ingredients, including miso, sugar, sesame seeds, mirin, sake, shiso leaves, green onion and eggplants.


  • 1 large Japanese eggplant (about 1.2 lb or 518 g)
  • 1 tbsp organic white miso
  • 1 tsp sugar (or keto-friendly sweetener)
  • 1 tsp mirin
  • 1 tsp sake (or water)
  • 2 tbsp toasted sesame oil
  • Optional garnishes: green onion, shiso leaves, toasted white sesame seeds
Cutting, scoring, watering and drying steps for Japanese eggplant preparation.

Recipe Instructions

Japanese eggplant recipe is ready in 18 minutes (excluding prep)

1. Prep the Eggplant

Halve the eggplant lengthwise. If it’s too long for plating, cut it in half crosswise. With the knife, lightly score the inner flesh crisscross. Eggplant has a natural bitterness. First off, it has to be removed before cooking. Soak the eggplant in water to remove bitterness for about eight to ten minutes. Pat them dry with a paper towel and put them aside.

Baking tray preparation and sesame seed oil coverage for eggplants.

2. Roast

Take a baking pan of your choice and use aluminum foil as a liner. Put the eggplant halves on the tray, brush with toasted sesame oil, and place them flesh side down for cooking. Roast for 15 minutes at 420°F in the toaster oven.

Making the miso glaze mix, including miso, sugar, mirin and sake.

3. Prep the Glaze

In a small bowl, mix miso and sugar or sweetener until dissolved. Add mirin and sake to your desired sweetness and consistency, and set aside.

The four steps in the cooking process including: glaze mixing, eggplant roasting, glazing and rotating.

4. Broil

After 15 minutes, when the timer is off, open the toaster oven door and flip the eggplant halves flesh up. Brush the glaze mixture over the open flesh and close the door. Increase temperature to 550°F and broil for 3 minutes until the glaze bubbles.

Slicing onion and shiso leaves for the eggplant recipe garnish.

5. Prep the Garnish

Cut one green onion stem into thin rounds while broiling the eggplants. Roll up 3-5 shiso leaves and julienne them into tiny strips.

Plating of the cooked miso-glazed Japanese eggplants.

6. Garnish

To elevate your presentation, use radish sprouts as a bed for eggplants. Sprinkle the eggplants with sesame seeds, strips of shiso leaves, and finely chopped green onion rings.

Plating and serving of the miso-glazed Japanese eggplants.

7. Meal Extras

Add one boiled egg cut in halves and one tomato in the middle on the radish bed to make a full keto-friendly meal. Serve immediately.

Chef’s Thoughts

The Japanese eggplant recipe is a beautiful blend of tradition and convenience, proving that even the busiest can whip up something nourishing and satisfying. And with the HeatMate toaster oven, those flavors really get a chance to shine, especially at that critical 550°F mark that makes the miso sing.

Wrapping It Up

Whether you’re a cooking newbie or a seasoned pro, this Japanese eggplant recipe is a fun way to dive into Japanese cooking without needing much time or ingredients. It’s healthy, adaptable to keto, and utterly delicious. So why not give it a go and bring a bit of Japanese flair to your table tonight?

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