Nigella Sativa is variously called as Black Seeds, Black Onion, Black Cumin Seeds, Roman Coriander or Kalonji. Nigella Seeds are small, Matte- black seeds with rough surface and an oily white interior. The seeds of Nigella sativa are used as a spice in Indian and Middle Eastern cuisines. The black seeds taste like a combination of onions, black pepper and oregano. The dry-roasted nigella seeds flavor curries, vegetables and pulses. It can be used as a "pepper" in recipes with pod fruit, vegetables, salads and poultry.