Duchess Potato Casserole | America's Test Kitchen

Duchess Potato Casserole | America's Test Kitchen

www.americastestkitchen.com

For potatoes that are elegant yet easy, we revamp a fussy French classic.

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Ingredients

  • 3 1/2 pounds Yukon Gold potatoes , peeled and sliced 1/2 inch thick
  • 2/3 cup half-and-half
  • 1 large egg , separated, plus 2 large yolks
  • Salt and pepper
  • Pinch nutmeg
  • 10 tablespoons unsalted butter , melted

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