Jeanette -- I'd very highly recommend cast iron "camp" Dutch ovens from Lodge of Tennessee. They are made in Tennessee and a great value (I've purchased most of mine on Amazon -- free shipping with Amazon Prime - and a lot cheaper than the MSRP you'll see on Lodge's website). They'll last a hundred years with minimal care. I think it would be a smart hurricane preparedness prep.
http://www.lodgemfg.com/seasoned-cast-iron/camp-ovens-and-grillsAll your mom would need is a bag of charcoal briquettes. Camp dutch ovens are designed so that they can be stacked -- each oven helping heat the one above and below.
And a "chimney starter" to jumpstart the coals (via a bit of paper and a match):
http://www.amazon.com/Weber-7416-Rapidfi...chimney+starterIf you can find out how many people she'd like to be able to feed, then we can help with size recommendations. For one or two people, I'd get the 1 quart-2 qt-4 qt. I also use the 1-quart in my kitchen stove.
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