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Cooking School: Au Gratin Potatoes

Learn classic dishes using our step-by-step instructions.

By Julie Miltenberger

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slicing potatoes
Alexandra Grablewski
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Slice Potatoes

1. Heat oven to 375 degrees F. Coat a 1-1/2-quart oval (or round) baking pan with nonstick cooking spray.

2. Place a handheld mandoline ($20, available at oxo.com or at kitchen accessory stores) over a large bowl. Place one potato on the slicer, and secure with guard. Using back-and-forth motion, carefully slice potato into 1/8-inch-thick slices. Alternatively, thinly slice potatoes with knife on a cutting board. Repeat with all potatoes.

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