This simple fish curry in a light gravy is based on a classic Bengali dish made with a bony fish called rui, popular in Bengali homes and home-style eateries like Gram Bangla in Brick Lane. I use cod instead of rui as it’s boneless, but otherwise I keep to the same flavours and spices. Bengali fish recipes usually begin by cooking the vegetables, adding the fish towards the end of cooking. However, European mangetout are more delicate than the Bangladeshi kind called uri and cook quicker, s