Place yoghurt, garlic, ginger, cumin, coriander, garam masala and chilli powder in a glass dish. Add chicken. Stir to coat. Cover. Refrigerate for 2 hours.

Heat oil and butter in a heavy-based saucepan over medium-high heat. Add onion. Cook, stirring occasionally, for 3 to 4 minutes or until softened. Add chicken mixture to pan. Cook, stirring, for 5 minutes or until chicken just starts to change colour. Add tomato puree and stock. Cover and bring to the boil. Reduce heat to low. Simmer stirring occasionally, for 10 minutes or until chicken is tender and mixture has thickened slightly.,

Stir in cream. Simmer for a further 5 minutes or until heated through. Serve with pies, mashed potatoe or steamed rice and coriander leaves.