That’s a great exercise!
We heat with a wood stove we can cook on. In fact, the power went out a few nights ago and we cooked dinner on it. Easy peasy. We do have about a half a dozen other options that can be used in a sheltered/covered area next to the house.
Encouraging folks to take a few hours (or even days) and practice going without power/water/communications can be a real eyeopener.