This Activity is meant for Boy Scouts.

For each team:
small spoon
roll of aluminum foil
tea candle, alcohol stove, or Sterno
matches
biscuit mix
jelly
water or milk

Provide each patrol with a bag of items.

The challenge is to build an oven, bowls, utensils, cooking tins as needed.
Then prepare and cook biscuits for the judge and patrol.

You may set a time limit of 5-15 minutes to prepare and 15 minutes to cook, but it should not be a 'first done winner' competition.

If you are relaxing around the campsite, scouts could just keep cooking and eating until the mix is gone.