Shorshe Maach - Bengali Fish Curry

Shorshe Maach
 

Ingredients
2 plaice (carrelet) 
1 tsp red chilli powder
1/2 tsp  turmeric powder
Salt to taste
***
A bay leaf
1/2 tsp kalonji seeds
2 black cardomom pods (crushed)
2 cloves
A piece of cinnamon
***
 A big onion(chopped) 
2 green chillies (half slit)
2 garlic cloves (chopped & crushed)
A piece of ginger (chopped & crushed)
 1/2 tsp red chilli powder
1/4 tsp  turmeric powder
1 tbsp mustard paste (Dijon)
A big tomato (blend)
 Mustard oil for frying / any other vegetable oil
1/2 tsp cumin powder
Coriander leaves
Method
Clean the fish & slice them .
Marinate the fish slices with first three ingredients.
Cover & refrigerate for an hour.
Heat oil in a pan & fry them.  
Drain & keep aside.
Then fry all the spices in the same oil.
When they crakle, add chopped onions.
When it turns golden brown, add ginger-garlic paste along with green chillies.
Fry for a while & then add the blended tomato along with mustard paste.
Stir for a while & add some water.
Cover & cook on medium heat  20-25mn, stirring from time to time.
Then add fried fish, cook for a while .
Garnish with coriander leaves & cumin powder. 
Serve with  rice any type of bread.