Sweet potato storage in 1843 Virginia

Special sweet potato houses or cellars were constructed to be ventilated, heated or smoked to dry out the potatoes. On loft over fire. Cooked on coals.

Saratoga Chips - Potato Chips

You can't eat just one... in 1887 - "The more you have of them, the more you will want one."  The paper thin chips were eaten hot or cold, and one writer felt they had "all the nutriment cooked out of them."  A few recipes, a joke from 1889 and more...