spice riddles   

A toasty and crunchy cereal would be pointless without this spice.

I come as a small grain, but not sugar or sand. You use me when cooking so that the food you eat doesn't taste bland. What am I?

I'm something that looks like sugar. But definitely not sweet. I used to add flavor. In olden days it preserved meat. Who am i?

I’m something that adds flavor. I’m white and very small. I come after sea and rock. Who am i?