Chicken Tikka Marinade:

• 600g/ 1.2lb chicken thigh (boneless, skinless), cut into 3cm / 2.2″ cubes
• 1/2 cup plain yoghurt, full fat best (Greek is fine)
• 6 cloves garlic , minced (~1.5 tbsp)
• 1 tbsp fresh ginger , grated
• 1 tsp garam masala
• 1 tsp each salt, cumin, ground coriander, paprika (sweet, normal or smokey)
• 1 tbsp vegetable oil
• 1/8 tsp cayenne pepper (optional)
• Pinch black pepper
• 2 tsp lemon juice

Cooking Chicken:

• 1 – 2 tbsp oil

Curry Sauce Spices:

• 2 tsp turmeric
• 1 tbsp garam masala
• 2 tsp coriander
• 1 tsp cumin
• 1/8 tsp cardamom powder
• 1/8 tsp cayenne pepper

Curry Sauce:

• 3 tbsp (65ml) vegetable oil
• 30g / 2 tbsp unsalted butter OR ghee
• 1 onion, finely chopped (brown, white or yellow)
• 1 tsp salt
• 2 tbsp fresh ginger , grated
• 6 cloves garlic , crushed or grated
• 1 tbsp paprika (not smoked)
• 1 2/3 cups (400ml) tomato passata (tomato puree)
• 1 2/3 cups (400ml) water
• 100 ml (1/3 cup + 1 tbsp) cream
• 1 tsp sugar
• 50g / 3 tbsp unsalted butter OR ghee