Anna's Chicken Curry

Ingredients

• 4 chicken breasts, chopped to bite-sized pieces
• 1 large onion
• 2 cloves garlic
• 1 inch fresh ginger
• 1/2 tsp salt
• 2 tbsp tomato puree
• about 2 pints / 1 litre chicken stock
• 1 lemon, cut in half
• 2 tbsp ghee or vegetable oil
• 2 tsp Cumin Ground
• 2 tsp Coriander Ground
• 4 Cardamom Whole
• 1/2 tsp Cinnamon Ground
• 1 tsp or to taste Chilli Ground
• 2 tsp Turmeric
• 2 tbsp Garam Masala
• 1 tbsp Mango Powder
• 1 bunch chopped fresh Coriander Leaf or 2 tbsp dried Coriander Leaf