This is a very popular dish from my home town in India and in Bangladesh we make it with a special fish Hilsha which is a delicacy in that part of the world
Hilsa bhapa (steam fish with mustard sauce ) 6 pcs of fish Steaks – each steak about 1/2 – 3/4 inch thick
3-4 tablespoons pure mustard oil
3 tablespoons yogurt
2.5 tablespoons grated coconut
1/2 – 3/4 teaspoon turmeric
1/2 teaspoon red chili powder (optional)
few green chili, slit for garnish (optional)
For the paste:
2 tablespoons mustard seeds
1 tablespoon poppy seeds (white)
3-4 hot green chilli (or as per your taste)
Salt to taste
Preparing the paste:
Soak the ingredients for the paste in 1/4 cup of water for about 30 -45 minutes. Grind the mustard, green chilli and the poppy seeds with salt to make a thick paste
Wash and clean (remove scales) of the fish and cut in steak size Pcs , In a bowl add the mustard paste, yogurt, mustard oil, coconut, turmeric powder, red chili powder, salt. Mix well or blend them all together in a blender for a few seconds. This is going to be the sauce for the fish. Do not add any extra water.
Combining the sauce and the fish
Coat an microwave oven safe container with mustard oil. Place the fish pieces in the bowl in one single layer. Pour the above mustard sauce over the steaks so the sauce covers all of the steaks completely. Add a few slit green chili peppers on the top. Drizzle some more mustard oil on the top if you wish.
Cover with a lid or with a plastic wrap. Cook for 3 minutes; take it out and stir the sauce (do not move the fish around). Put it back in the microwave, cover and cook for 2 more minutes. Uncover, take out, stir; cover and put it back and cook for 2 more minutes. Uncover and cook for 2-3 more minutes. (the cooking time may slightly vary with the power of the microwave).. adjust to your microwave.