When I used to go camping with the Girl Scouts, we all had to bring tuna (yes,
tuna!) cans or we couldn't have dessert.
Pineapple Upside Down Cake
Make any boxed yellow cake mix according to directions.
In each tuna can put some melted butter, brown sugar, a pineapple ring and a
cherry in the middle. Cover with cake mix (about 3/4 of the way to the top.) Cover
with foil and lay in the coals until done -- sorry no time to give you, you must
just keep checking, as it depends on the heat of the campfire.
Make a gingerbread mix according to directions. Put some applesauce in the tuna
can, pour cake mix over it, cover with foil and place in coals to cook.