Potato Gratin with Caramelized Onions

Recipe by Derf2440
READY IN: 2hrs 30mins
SERVES: 8
UNITS: US

INGREDIENTS

Nutrition
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DIRECTIONS

  • In saucepan, bring cream, garlic, peppercorns, thyme and salt to boil, reduce heat to low, cover and simmer for 15 minutes.
  • Remove from heat and set aside.
  • Meanwhile, in nonstick frypan, heat oil over medium low heat; cook onion, stirring often, until light brown, about 45 minutes.
  • Slice potatoes as thinly as possible, use mandoline if available.
  • Layer one quarter of the potatoes in greased 8 inch square glass baking or casserole dish; top with one third of the onion and one quarter of the cheese.
  • Repeat twice.
  • Top with remaining potatoes.
  • Strain cream mixture over potatoes, shaking casserole to distribute evenly; sprinkle with remaining cheese.
  • Bake at 300f degree oven until tender and knife inserted in bottom pierces potatoes easily, 1 1/2 to 2 hours.
  • (Make ahead: let cool; cover and refrigerate for up to 2 days. Reheat in 375f degree oven for 30 minutes.).
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