Caramelized Onion Mashed Potatoes

Quick look

  • prep 10 min    cook 25 min
  • serves 6

No holiday dinner is complete without mashed potatoes, a crowd favorite. Your guests will love this modern update on a holiday classic.


  • 2 tablespoons olive oil
  • 3 large onions, thinly sliced
  • 2 tablespoons water
  • 2 tablespoons balsamic vinegar
  • Dash of salt
  • 2 pounds Yukon Gold or Russet potatoes, peeled and cut into large chunks
  • 2/3 cup whole milk
  • 2 tablespoons butter
  • Salt and pepper to taste

    How to make it  

  • 1

    In large skillet, heat olive oil over medium-high heat.

  • 2

    Add onions and let stand for about 5 minutes. Cook for 15 minutes more, stirring until golden brown. Toss well.

  • 3

    Add water and balsamic vinegar, stirring well. Continue cooking until completely reduced and deep golden brown. Remove from heat and cover until ready for use.

  • 4

    While onions are cooking, place potatoes in large pot and cover with cold water with a dash of salt.

  • 5

    Bring to a boil over high heat. Reduce heat to medium and cook until fork tender, about 15 minutes.

  • 6

    Drain completely and return to pot. Mash potatoes and add milk, butter, and salt and pepper to taste.

  • 7

    Stir in caramelized onions. Keep warm until ready to serve.

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