Heat the oil, over medium heat, in a casserole dish or shallow pan; fry the onions for 10 - 12 minutes until golden. Stir in the garlic, ginger, chilli and all the spices; cook for 2 minutes more until the mixture resembles a paste.
Stir in the tomato purée, chopped tomatoes and mango chutney; bring to a simmer; cook for a further 10 mins.
Stir in most of the cream and the yogurt, if using, and return the mixture to a simmer.
Add the turkey and continue to simmer until the turkey is piping hot.
Remove from the heat; drizzle with the remaining cream; stir through briefly.
Scatter with coriander and flaked almonds; serve with the rice and naan breads on the side