Materials
required:
The Cardboard Box Oven
A cardboard box will make an oven. Cut off
the flaps so that the box has four straight sides and bottom. The
bottom of the box will be the top of the oven.
Cover the box inside and out COMPLETELY with foil, placing the shiny side out.
To use the oven, place the pan with food to be baked on a footed grill over the lit charcoal briquettes. The grill should be raised about ten inches above the charcoal. Se the cardboard oven over the food and charcoal Prop up one end of the oven with a pebble to provide the air charcoal needs to burn - or cut air vents along the lower edge of the oven. Control the baking temperature of the oven by the number of charcoal briquettes used. Each briquette supplies 40 degrees of heat (a 360 degree temperature will take 9 briquettes).
Experiment! Built an oven to pit your pans - or your menu: Bake bread, brownies, roast chicken, pizza, or a coffee cake. Construct a removable oven top or oven door. Punch holes on opposite sides of the oven and run coat hanger wire through to make a grill to hold baking pans. Try the oven over the coals of a campfire.
Instructions for Building an Oven in Cardboard
Box
Materials
required:
Step 1: Cut the box so that it looks like
this: 
Step 2: 
Step 3: 
Step 4: Line box with foil and stick with
tape, making sure tape is not exposed on inside of box (it gets mighty
hot in there).
Step 5: 
Temperature Control: Adjust temperature by number of hot charcoal briquettes used in the box.
Suggested items to try in the box: Biscuits, small pizzas, pigs in a blanket, cookies, small cakes, small pies, baked spam, etc. Scouts shown the idea will come up with all sorts of interesting variations.
