Just tell people they’re dipped in dark chocolate

Wrap in tin foil and then put on a grill over the fire. This is just cajun blackened apples without the spice.

When I was a kid we used to do something called "Screaming Apples" where you put the apple on a stick, stuck it in the campfire like a marshmallow and waited for it to make a sound kind of like a siren. When it got noisy, it was cooked.

On the plus side, you can try baking apples again with your new charcoal briquette.