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French Onion Mashed Potatoes Recipe

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★★★★★

4.2 from 71 reviews

French Onion Mashed Potatoes combine creamy mashed red potatoes with rich, caramelized yellow onions for a decadent twist on a classic side dish. This comforting recipe features buttery, smooth potatoes blended with a luscious onion and cream mixture, garnished with fresh parsley and extra caramelized onions for added flavor and texture. Perfect for holiday meals or any cozy dinner.

Ingredients

Scale

Potatoes

  • 6 pounds red potatoes, washed, peeled, quartered

Onion Mixture

  • 1 cup (2 sticks / 227 g) unsalted butter, divided (¼ cup for caramelizing onions, remaining for blending and serving)
  • 2 large yellow onions, thinly sliced into half-moon shapes
  • 1 cup (238 g) heavy whipping cream
  • 2 teaspoons kosher salt
  • 1 teaspoon black pepper

Garnish

  • Parsley, chopped for garnish

Instructions

  1. Boil Potatoes: In a large pot of cold salted water, add the quartered red potatoes. Ensure the water covers the potatoes completely. Cover the pot with a tight-fitting lid and bring it to a boil over high heat. Once boiling, remove the lid and reduce the heat to medium-high. Cook until the potatoes are fork-tender, about 25 minutes.
  2. Caramelize Onions: While the potatoes boil, melt ¼ cup (½ stick) of butter in a large non-stick skillet over medium-high heat. Add the thinly sliced onions and sauté them for 25-30 minutes, stirring occasionally, until they become very tender and caramelized to a rich golden brown color. Reserve ¼ cup of these caramelized onions for topping.
  3. Prepare Onion Mixture: In the last few minutes of cooking the onions, add the remaining butter, heavy cream, kosher salt, and black pepper to the skillet. Stir until the butter melts and the mixture is warmed through.
  4. Blend Onion Mixture: Carefully transfer the skillet mixture into a food processor. Blend until smooth and creamy, creating a luscious onion sauce.
  5. Mash Potatoes and Combine: Drain the cooked potatoes and return them to the pot. Lightly mash the potatoes using a potato masher or fork until mostly smooth. Add the blended onion mixture and mix thoroughly until the potatoes are creamy and fully incorporated. Adjust seasoning with additional salt and pepper if desired.
  6. Garnish and Serve: Transfer the mashed potatoes to a serving dish. Garnish with chopped fresh parsley, the reserved caramelized onions, and an extra pat of melted butter if desired. Serve warm.

Notes

  • For extra flavor, consider sprinkling some grated Parmesan cheese into the mashed potatoes before serving.
  • Use a potato masher or ricer for a smoother texture.
  • Red potatoes hold their shape better, but Yukon Gold potatoes can be substituted for a creamier consistency.
  • Caramelizing onions is key for depth of flavor, so be patient during that step.
  • This dish pairs wonderfully with roasted meats and holiday turkey.

Keywords: French onion mashed potatoes, mashed potatoes recipe, caramelized onion potatoes, creamy mashed potatoes, holiday side dish

Find it online: https://foodiecara.com/french-onion-mashed-potatoes-recipe/