Halve the eggplants lengthwise and roast cut-side up at 220°C (430°F) for 25–35 minutes. They should be soft and slightly collapsed. If a fork doesn’t slide in easily, they’re not ready.
Scoop out the eggplants flesh or peel off the skin carefully.
Place the eggplants on a plate and let sit for 5 minutes. Drain off any liquid.
Grate or finely mince the garlic and ginger until almost paste-like.
Plate the eggplants, drizzle with ponzu (or soy sauce), sprinkle with green onion and bonito flakes if using.
Serve warm.
Video
Notes
If you don’t have access to Ponzu, here’s a quick homemade version that works great:
100 ml low-sodium soy sauce
100 ml citrus juice (mix of lemon + orange)
1 tbsp sugar or sweetener + 1 tbsp water (or 2 tbsp mirin if you have it)
Zest of 1 lemon
Mix everything in a jar and let it infuse in the fridge for at least 1 hour (overnight is best). For this dish, you’ll only need a few tablespoons—but the rest keeps well and is perfect for dipping or dressing