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Savory Twice Baked French Onion Mashed Potatoes

Combine the richness of classic mashed potatoes with the deep, savory flavors of French onion soup for a crowd-pleasing dish.
Prep Time 20 minutes
Cook Time 1 hour
Total Time 1 hour 20 minutes
Course Side
Cuisine American
Servings 6 servings
Calories 350 kcal

Equipment

  • Large Pot
  • Skillet
  • Baking Dish
  • Potato Masher

Ingredients
  

Ingredients

  • 2 pounds Russet Potatoes Peeled and cubed for even cooking.
  • 2 large Yellow Onions Sliced thin and caramelized.
  • 4 tablespoons Unsalted Butter For caramelizing onions.
  • 1 cup Heavy Cream Adds richness to the mashed potatoes.
  • 1 cup Shredded Gruyère Cheese Can substitute with Swiss cheese.
  • 1 teaspoon Salt Adjust to taste.
  • ½ teaspoon Black Pepper Freshly ground for best flavor.
  • ¼ cup Chopped Fresh Chives For garnish.

Instructions
 

  • Peel and chop the russet potatoes into even-sized cubes.
  • Place the chopped potatoes in a large pot, cover with cold water, and add a pinch of salt. Bring to a boil.
  • Reduce heat and simmer for 15-20 minutes until fork-tender.
  • In a skillet, melt butter over medium heat and add sliced onions. Cook slowly for 25-30 minutes until golden brown.
  • Remove caramelized onions from heat and set aside.
  • Drain the potatoes and return them to the pot. Let sit for a minute to release steam.
  • Add heavy cream, caramelized onions, Gruyère cheese, salt, and pepper to the potatoes.
  • Mash the potatoes until desired consistency is reached.
  • Preheat oven to 375°F (190°C) and transfer mashed potatoes to a greased baking dish.
  • Sprinkle additional cheese on top and bake for 25-30 minutes until golden brown.
  • Let cool for a few minutes and garnish with chives before serving.

Notes

Store leftovers in an airtight container for up to three days. Reheat in the oven or microwave.
Keyword Comfort Food