"Steam baking" is an easy option too. Mix up the goop (biscuit dough, corn bread, epoxy & shavings), put it into a plastic bag (lightweight food storage bag works well). Use about 15% less liquid in the dough than you would have to use if your dough were open to dry heat.
Have a covered cooking pot, with a steamer basket in it. The same steamer basket used at home to steam broccoli, etc. works very well in camp. Have an inch of water in the pot, (should not overflow the bottom of the basket), get it boiling, set the bag of dough onto the steamer basket, cover the pot.
Now, you don't need as large a fire to keep it boiling as you did to get it boiling, so turn down your flame to a lower setting. Twenty to thirty minutes later, you have baked bread/biscuit, etc. Nice thing here is, it doesn't scorch or burn. The only extra weight you carry is the 4 oz basket.
Some steamer baskets have legs that are permanently riveted in. Look around a bit, and find one that has legs that are little spring clips that are easy to remove and reattach. This unit will pack more compactly in less space. Also, this kind has no permanent center post, so the bag sits perfectly flat.