Rachael's French Onion Mashed Potatoes
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Rachael's French Onion Mashed Potatoes

This recipe originally appeared on the Rachael Ray Show. For more recipes and videos from the show visit RachaelRayShow.com.

Inspired by French Onion Soup, this twist on the classic potato side comes complete with Gruyere cheese and caramelized onions. MAKE-AHEAD: This recipe can be made ahead and frozen for up to 2 weeks. To reheat, bring to room temp and transfer to a saucepot with a lid. Place the pan in a larger shallow pan in about 1½ inches water, bring to simmer and heat the potatoes in the water bath; stir occasionally and add more water as needed.

Ingredients

  • 4 tablespoons butter, cut into small pieces

  • 3 large onions, chopped

  • 1 large bay leaf

  • Salt and white pepper and/or fine black pepper

  • 1 teaspoon ground thyme

  • 1 can beef consommé or 1 cup beef stock

  • 3 pounds Russet potatoes, peeled and cut into 6 chunks each

  • 1 bulb garlic, 6 large cloves

  • 1 cup whole milk or half-and-half, warmed

  • 1½-2 cups shredded Gruyere or Comte cheese, 12 ounces

  • Freshly grated nutmeg

Preparation

For caramelized onions, heat a skillet over medium-low to medium heat and melt butter. When it foams, add the onions and season with bay, salt, white and fine black pepper, and thyme and cook slowly 35-40 minutes to deep caramel and very soft and sweet. Add consommé or stock and stir a minute or so and remove from heat.

Place potatoes and garlic in a pot and cover with water and bring to a boil. Add salt to boiling water and cook potatoes to fork-tender, 15-20 minutes. Drain potatoes and garlic and place in food mill or potato ricer. Mill or rice the potatoes and garlic and add milk and cheese to combine. Season with salt and white or fine black pepper and freshly grated nutmeg to taste, then stir in the caramelized onions.

Serve potatoes while hot or, to make ahead, cool to room temp and store in fridge.

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