Chicken Tikka Masala - St Helen's Farm Goat's Milk

Ingredients

• 200g jar tikka curry paste
• 300g natural goats’ milk yogurt
• 1 tablespoon tomato puree
• 600g chicken thigh fillets
• 50g goats’ butter
• 2 onions, finely chopped
• 2 cloves garlic, finely chopped
• 3/4 cm piece root ginger, peeled and finely chopped
• 125g spinach – fresh or frozen
• Juice half lime
• Salt and pepper
• Fresh coriander (optional)