Toasting and Grinding Spices, Nuts, and Seeds When Columbus went looking for Asia and bumped into the Americas, he was on a voyage financed by Spain with the understanding that he would find a better route to the spice markets of India—an illustration of how central spices have always been to cuisine. But spices, like other comestibles, are subject to loss of flavor if not properly prepared. Toasting whole spices, and, usually, grinding them, is the way to get maximum flavor from them. This is extremely easy to do: Gently warm the seeds or other whole spices in a dry skillet over medium heat. Once they become aromatic, they are toasted. When they have cooled a bit, grind them in a spice mill (or a clean coffee grinder) or with a mortar and pestle. Toasting and grinding awakens the oils and aromatics within them. With spices like pepper and cumin, for example, which are staples of my cooking, you can prepare a batch of the toasted ground spice and keep it around for up to 2 weeks.

The same principles apply to toasting nuts: the heat maximizes their flavor. Grinding makes them the proper consistency for cooking in soups and stews.