Kerala fish curry / meen curry ( with coconut paste )

Ingredients

• 350 g Black Pomfret ( Aavoli ) / Seer fish (Nemmeen / Ayakkura), cleaned and cut into thick pieces ( The slicing is different for frying and fish curry . Some prefer to skin out the fish - in which case the fish should be skinned). (Marinate fish pieces with 1/2 teaspoon salt and 1/2 teaspoon turmeric powder for 1/2 hour )
• 15 small onions ( chuvannulli / sambar onion / shallots ) thinly sliced or 1 full onion, thinly sliced
• 1 - inch piece ginger, finely chopped
• 8 cloves garlic, finely chopped
• 2 green chillies, slit lengthwise
• 1 spring curry leaves
• 5 kudampuli ( kokum ) ( soak kudampuli in 1/2 cup water with 1 teaspoon salt for 1 hour )
• 1 1/2 teaspoon salt ( or to taste )
• 1 cup water (1/2 cup water to cook with kudampuli and fish pieces, remaining water for coconut paste )
• 2 teaspoon cooking oil

For the coconut masala / paste:

• 1 cup coconut, grated
• 8 whole red chillies ( soak whole red chillies in 1/4 cup water for 1 hour. Reserve water to grind the coconut paste)
• 1/4 teaspoon methi seeds ( uluva / fenugreek )
• 1/2 teaspoon turmeric powder
• Make a smooth paste of above ingredients in a mixer. Keep aside.