In a small bowl mix together Spice 'N Flavor Fish Masala and 2 Tbsp. water and set aside. Add spice paste and saut , stirring, until liquid has evaporated, about 3 mins. Add the tamarind paste or lemon or lime juice and salt. Add coconut milk and simmer 3 mins. Add salt to taste.
Transfer curry to a serving dish and garnish with coriander leaves.
For milder gravy increase the amount of coconut milk. For a spicier curry, increase the amount of the India's Spice 'N Flavor Fish masala or add 1 or 2 chopped fresh green cayenne or serrano chilies along with the ginger, garlic and curry leaves in step 3. This special dish of spicy fish is unique to Kerala, the Southern state of India where fish is part of daily menu. It is ideal when served with rice, bread or boiled cassava or yucca. In a large bowl combine Spice 'N Flavor Fish Shrimp Masala.