My microwave is an indispensible sous chef. It melts and tempers chocolate, parcooks root veggies on their way to the roasting pan, sweats onions in a pinch, and dries and toasts old bread for nearly instant bread crumbs. Wait a minute—toasting? While we think of the microwave for reheating, melting, and steaming, it can also dehydrate and bake like the Sahara. You have to watch it, though. It doesn’t take long to turn light brown perfection into black, smoking carbon. The potato chip is such a perfect microwave snack there should be a button for it next to “popcorn.” Better than the greasy chips from a bag, they are crispy yet ethereal hits of…