Dilly Sweet Potato Chips
Why This Recipe Works
The best tool for handling the potatoes for our sweet potato chips recipe proved to be a mandoline, which quickly cut the potatoes into perfect 1/16-inch-thick slices. When it came time for cooking, we found that the only way to guarantee that the right oil temperature had been reached was to use a thermometer—either instant-read or a clip-on candy thermometer. To maintain a steady temperature and to prevent the chips from fusing together, it’s important to not overcrowd the pot. The test kitchen favored peanut oil for our sweet potato chip recipe because of its high smoke point and mild but toasty flavor, with vegetable oil as a close second.