Nigella seeds

Nigella seeds are the small, matte-black, angular seeds of Nigella sativa, an annual herb in the buttercup family. In the kitchen you use the dried mature seeds, most often whole.

They are often misnamed as black onion seeds or black cumin, but they are botanically distinct. Cold-pressed black seed oil from these seeds is used in traditional wellness practices and topical formulations.

Raw kalonji is astringent and distinctly bitter. Crush a few and you get a sharp, peppery hit reminiscent of oregano and cracked peppercorns. Gentle toasting or frying in hot oil shifts it to a warm, toasted nutty aroma with notes of onion, oregano, and black pepper.

For everyday cooking, add whole kalonji to hot oil or ghee during tadka so the volatile oils infuse the fat. You can also mix the seeds straight into doughs and batters for snacks and flatbreads.

It is one of the five whole spices in panch phoron. Press the seeds onto naans, kulchas, and parathas, knead into samosa, mathri, or nimki doughs, and use in North Indian pickling mixes for mango, chili, or lemon achaar.

Indigenous to Southwest Asia and the eastern Mediterranean, Nigella sativa has been cultivated for culinary and medicinal uses since antiquity. In India it is commercially grown in Rajasthan, Madhya Pradesh, Bihar, Punjab, Assam, and West Bengal.

Nigella seeds contain significant concentrations of thymoquinone, the primary bioactive phytochemical associated with the seed's antioxidant activity.