Potato gratin with caramelized onions


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How to Make Potato Gratin with Caramelized Onions
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Time: 30 min.
Complexity: easily
Servings: 4

Nutritional value per serving:

Calories 664, total fat 39 G., saturated fats 25 G., proteins 28 G., carbohydrates 51 G., fiber 6 G., cholesterol 128 mg, sodium 996 mg, sugar 8 G.


If you're making this gratin for a holiday party, serve it impressively in individual serving dishes. Mashed potatoes with gooey Parmesan cheese are topped with sweet caramelized onions and thyme, sprinkled with Swiss cheese, and lightly toasted in the oven to melt the cheese. The recipe is simple, yet delicious.



The recipes use measuring containers with the following volumes:
1 glass (st.) - 250 ml.
3/4 cup (st.) - 180 ml.
2/3 cup (st.) - 160 ml.
1/2 cup (st.) - 125 ml.
1/3 cup (st.) - 80 ml.
1/4 cup (st.) - 60 ml.
1 tablespoon (tbsp) - 15 ml.
1 teaspoon (tsp) - 5 ml.
1/5 teaspoon (tsp) - 1 ml.

Ingredients for the recipe:


  • 2 tablespoons butter
  • 1 large or 2 medium sweet onions, such as Vidalia, thinly sliced
  • 0.5 tsp ground thyme
  • 1 bay leaf, fresh or dried
  • 900 g Yukon Gold potatoes or fingerling potatoes
  • 0.5 - 2/3 cup heavy cream
  • 0.5 tbsp. grated parmesan
  • 220 g grated Gruyere or Swiss cheese



We recommend
Recipes with similar ingredients: potato, Vidalia onion, Parmesan cheese, cream, bay leaf, thyme

Cooking the dish according to the recipe:


  1. In a small skillet over medium heat, melt the butter. Add the onion, season with salt, sprinkle with ground thyme, add the bay leaf, and sauté until the onion is very soft, sweet, and lightly caramelized, about 20 minutes. Season with salt and pepper to taste and discard the bay leaf.
  2. While the onions are frying, place the potatoes in a medium saucepan and cover with water. Bring to a boil, then add salt and cook until tender, 12-15 minutes. Drain and return the potatoes to the hot saucepan. Mash the potatoes with the cream and Parmesan cheese, and season with salt and pepper to taste.

  3. Preheat oven to grill mode.
  4. Divide the mashed potatoes among individual baking dishes or into a shallow casserole. Top with caramelized onions and sprinkle with cheese. Place the dishes on a baking sheet and broil until bubbly, about 2 minutes. Remove from the oven and serve the gratins hot.





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