In a large sufuria, in a medium heat, put 2tablespoon of cooking oil, add chicken, let it cook for about 20min,then add natural yougurt and blended tomatoes. add all the spices, one by one, continue cooking, and stir well, add the crips onions, cover and cook in a low heat, add cooking cream, tomatoe paste, and lemon juice, add salt to taste and pepper, let it cook in a low it