This is a classic Bengali fish curry made with Parshe fish, also known as mullet, and a spicy mustard-based gravy.Here’s a bit more about it:Fish: The Parshe is a small, delicate freshwater or estuarine fish that’s prized in Bengali cuisine for its tender texture and distinct flavor.Jhal: The word “jhal” means “spicy” in Bengali. So this dish typically has a sharp kick from mustard paste, green chilies, and sometimes a touch of red chili powder.Other ingredients: Besides mustard, typical flavorings include turmeric, nigella seeds (kalonji) for tempering, and a bit of mustard oil, which gives it that unmistakable Bengali aroma.It’s usually served hot with steamed rice, allowing the spicy, tangy sauce to shine.