Toast the nuts, sesame seeds, coriander seeds, and cumin seeds over high heat for 1 minute, stirring constantly.
Use a food processor, coffee grinder, or mortar and pestle to crush the toasted mixture, then season it with salt and pepper. (Don't over-grind; you want a consistency similar to coarse-ground cornmeal.)
Put your Dukkah in a bowl next to a bowl of olive oil, and set out cut-up raw vegetables. Dip the vegetables first into the oil, then into the Dukkah, and eat.