If I have some fresh, raw corn on the cob, how do I roast the corn kernels so that they can be used as croutons or eaten as a salty-snack? I don't want to make popcorn, but something that looks like these
You fry them in a saucepan with some oil (I use either olive or sunflower).
In order they don't explode an become pop-corn, you should have kept them in water for several (6~48) hours before frying them.
If you want them softer (and bigger), put them in water at 70°C for about 20~30 minutes.
How do you know they are done? When they are golden in the saucepan where you are frying them with oil. Take them out of the pan and add some salt.