Roast the 2 tbsp coriander powder, 1 tbsp chili powder, 1 tbsp turmeric , 1 tbsp garam masala ,1tbsp pepper powder and salt on low flame for 5 mins .
Marinate the duck with the roasted masalas along with crushed ginger, garlic small onion shallots ,oil and curry leaves. Keep it for 30 mins.
Pressure cook the duck for 10 mins .The duck will be cooked in 2 to 3 whistles. Next take a pan heat some coconut oil. To it add onions and coconut pieces and sauté it for 10 mins.
Next add 2 tbsp coriander powder ,1 tbsp chili powder,1 tsp turmeric powder and saute it for 5 mins. This is to add a little more thickness to the gravy.
Next add tomatoes and green chilies .Sauté for another 5 mins.
Next add the boiled duck and boiled raw banana to the curry. Cook the gravy for 10 to 15 mins in low flame.
Then add the thick coconut milk and boil it for 5mins. Add some crushed peppercorns for more spice. Switch off the flame.
Transfer the curry into a serving bowl and garnish with curry leaves. Your Kerala Spicy Duck Curry is ready. This is a super combo with puttu, appam idiyappam and chapatis. Try this out.