Black Chicken Curry

Black Chicken Curry recipe from The Cooking Plumber.
Ingredients (serves 2)
1 Tbsp of oil
2 Chicken breasts cut into chunks (500g, preferably from a good butcher)
I Tbsp Tamarind (or 1 Tbsp lemon juice)
1/2 tsp salt
15g Ginger paste (20mm ginger pounded in a pestle & mortar)
15g Garlic paste (5 garlic cloves mashed)
3 Cardamom pods split & seeds removed
Pinch of Fox's Spices Cinnamon powder ( 20mm Cinnamon stick)
1.5 Tbsp vegetable oil
1 Red onion thinly sliced
1 Green chilli chopped & seeds removed (if more heat required, leave them in)
250ml Chicken stock (1 Cup)
Instructions 
1. Add the chicken to a bowl and mix in the chilli powder, turmeric, tamarind & salt. Mix until the chicken is completely coated. Leave for at least 20 minutes.
2. In a small bowl mix the ginger, garlic, cardamom seeds & cinnamon into a paste and set aside until needed.
3. Add the oil to a medium sized pan over a medium to high heat. When the oil is hot, add the onion, green chilli & curry leaves. Lightly stir-fry for 5 minutes.
4. Stir in the paste & Kalu Kudu spice mix for 2 minutes.
5. Add the marinated chicken & mix well with the rest of the pan for five minutes.
6. Mix in the stock & bring to a boil. Cover with a lid & reduce to a simmer for 20 minutes or until the chicken is cooked and you are ready to serve.
Serving suggestions:
Serve with rice or flat breads.
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