Cast iron skillet, or maybe a stick. Perhaps a board.
1let's say a double handfulFlour
1single handfulPowdered milk-less than the flour but more than you think
2three-fingered pinchesBaking Powder
1/2 cupmore or less- splash in a little at time and stir it in just until you achieve the desired consistencyWater or stale beer-less than for pancakes but maybe more than for biscuits. Err on the dry side if you intend to roast your bannock on a stick or wrapped around a sausage.
3or so dollopsbutter it almost goes without saying: bacon grease or lard may be substituted for butter, and good on you for thinking of it.
Mix dry ingredients thoroughly, mix in liquid less so
plop into a medium hot buttered skillet (should not sizzle much at all) smash flat with spatula, and this is important: keep the heat low and cook slowly, flipping the bannock over to cook it through without scorching.
With cast iron you can remove the skillet from the coals and let the retained heat cook the bannock, returning to the heat as needed. Flip frequently until golden brown on both sides. Serve with butter and jam.You can add berries to this if you wish. If you mix the dry ingredients in a zip-lock bag before leaving for camp, you can add water directly to the bag and mix it by kneading the bag, making for a quick and relatively mess-free preparation. If you mix the batter a little thicker, you can wrap it around a stick and roast it, or wrap it around a cooked sausage or hot dog and cook the bun right on the meat. You can also plaster it to a plank propped in front of the fire to bake bread without any pans.