Let’s start cooking the curry. - Heat up the olive oil in a large pan. - Add the diced onion. Cook till soft and golden - Mix in the spices (cumin, nigella, turmeric, garam masala). - Turn down the heat a little bit and add the chicken (and more oil, if needed). - After 2-3 minutes, add the chopped garlic, ginger and chilli. - After 3-4 minutes, add in and stir the chopped tomatoes, followed by the creme fraiche. - Add 1/2 fresh coriander, and the dried coriander. -Simmer till chicken is cooked through but tender.