SESAME SEEDS CAN BE found already toasted in many Asian markets, sometimes already toasted and ground. But you can toast and/or grind sesame seeds at home with little fuss. To toast seeds, simply heat a small pan (medium-high) and swirl untoasted white sesame seeds for about three to five minutes until they turn a light brown. If you have an electric coffee grinder, you can also grind toasted or untoasted seeds into a powder when necessary for a recipe: just be sure to clean out the grinder well before and after each different use. Or, you can invest in a separate small grinder for seeds and other whole spices.