The elusive spice is part of many Asian, African, South American, and Caribbean cuisines. Here’s what you need to know about its history, how to shop for it, and how it’s used in cooking.

Turmeric is often a component of curry powder and it is used on its own in ... their distinctive yellow tinge. It has a slight peppery aroma and a musky taste.

Pure turmeric will form a suspension, with the yellow powder settling down ... will burn slowly and release a mild aroma of burnt spice. Adulterated turmeric, which may contain starch or other ...