Sorshe bata (mustard paste) diye Mach (fish) is a staple for Bengali. I truly love every form of bengali fish curry from Jhol to Kaliya with some steamed rice. My mom makes this Sorshe bata diye Mach very often but I have never tried it with onion, ginger and garlic. One day I came across this Sorshe Salmon recipe of Somedutta's (my friday food swings) and it caught my attention. I gave it a try, wait ... not once but several times! The recipe is absolutely amazing, you can make this with any type of fish. Please do give it a try.