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Classic Potato Gratin

Layers of tender potato and creamy cheese with a caramelized top.  
Prep Time10 mins
Cook Time55 mins
Total Time1 hr 5 mins
Course: Side Dish
Cuisine: Vegetarian
Keyword: Easter side dish, Potato gratin
Servings: 6


  • 4 medium Russet potatoes (about 4 cups potatoes) peeled and thinly sliced
  • 2 cup cheese (such as Monterrey Jack, Swiss or Gruyere) grated
  • 2 cup heavy cream
  • 1/2 tsp salt
  • 1/4 tsp pepper
  • 1 small yellow onion thinly sliced
  • 1 tsp olive oil


  • Preheat oven to 275 degrees.  Butter a medium baking dish (10" x 6"). NOTE: This is a little smaller than your standard casserole dish.  
  • In a small pan over medium heat saute onion in olive oil until just tender.
  • In a large mixing bowl, combine sauteed onion, potato slices, cheese, cream, salt and pepper together. Pour into prepared baking dish.  Cover with foil.  Bake for about 45 minutes.  Remove foil and bake another 10 minutes or until potatoes are fork tender and top is nice and browned.