Shorshe Bata Maach |
To prepare the sauce, black mustard seeds must be soaked in tepid water for at least two hours or preferably overnight. The seeds, along with water in which it was soaking, is placed in a blender jar with salt and a green chili, blended at maximum setting until smooth, and then added to the fish.
Any white fish, cleaned and left whole, cut in steaks or filleted can be used according to taste and is best served with hot, long-grained rice.