Nigella is used as both spice and garnish in Indian and Middle East cuisine. The flavour is mildly aromatic, and when cooked (roasted, baked or fried) emanates notes of oregano and a light, peppery bitterness, a bit like bread crust.
In the European world, Nigella seeds are being increasingly used in seed bread, vegetable, fish and lamb dishes. Nigella seeds originally come from India and are used in many of their most popular dishes, either as sprinkles on flatbread, and vegetable and meat curries.
Nigella tastes like salty mild pepper and is hence often used as a healthy substitute for salt in raw food and salads. Nigella can replace poppy seeds in bread by sprinkling over the dough before baking it in the oven.