Heat the butter and oil, and when the butter melts, add the kala jeera and then the tomato puree and cook over high heat, stirring a few times, till the mixture comes to a boil, and then simmer till the puree splutters.
Add the salt and the chicken pieces and turn around a few times till the chicken pieces are coated with the puree and heated through.
Add the cream and turn around a few times till well blended and hot.
Serve immediately, garnished with the green chillies.
Key Ingredients: chicken, butter, vegetable oil, black cumin, toamto puree, salt, cream, green chillies