Root Vegetable Gratin with Mustard Cream - SippitySup

Root Vegetable Gratin with Mustard Cream - SippitySup

www.sippitysup.com

The key to this Root Vegetable Gratin with Mustard Cream is having all the vegetables sliced the same thickness so they cook at the same rate.

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Ingredients

  • unsalted butter (as needed for baking dish)
  • 2 teaspoon whole yellow mustard seeds (divided)
  • 2 pound assorted root vegetables (such as sweet potatoes, celery root, and rutabega) (peeled and very thinly sliced)
  • 2 clove peeled, whole garlic
  • 2 cup whole milk
  • 2 cup water
  • 1 cup cream
  • 1 tablespoon Dijon mustard
  • kosher salt (to taste)
  • ground white pepper (to taste)
  • 2 tablespoon all-purpose flour
  • 6 ounce grated Emmental cheese (or similar)

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