Fry the shallots and the ginger in the same pan for 2 minutes then add the mango and the orange segments and the curry powder and fry for 1 minute , stirring , then add the chicken stock and bring to the boil then turn down the heat and simmer for 5 minutes . Return the chicken to the pan and add the yoghurt and stir through to combine , season then cover and simmer for 5 minutes .