Here is a simple recipe that translates easily to Western kitchens.
From the Leela Resort, Goa’s Jamavar Restaurant.

Serves Four.

Fish with Rechedo Masala sauce
Masala fish dish 

Ingredients:

10 Red Chilis dried
1 Onion roasted
8 Garlic cloves
10 Pepper corns
½ tsp. Cinnamon
5 Cloves
1 tsp diced fresh Ginger
1 tbsp Sugar
½ tsp Cumin
2 tbsp.Coconut Vinegar (can substitute White Vinegar

Salt to taste

Grind all ingredients to a fine paste.  Marinate any white fish with lemon juice and salt.  Apply the masala paste onto the fish. Pan fry until done.