Serves a Crowd

Mashed Potatoes with Caramelized Onions

November 21, 2022
0 Ratings
Photo by Steve
  • Prep time 45 minutes
  • Cook time 45 minutes
  • Serves 8-10
Author Notes

An indulgent dish, perfect for holidays, and not a drop of dairy in sight, important for some including those who keep kosher and have some kind of meat or poultry as the main. I first ate this in the home of surrogate parents (who did keep kosher) as part of a Thanksgiving meal. These dear people are no longer with us, but their recipe lives on. —Steve

What You'll Need
  • 3 pounds Yukon Gold potatoes
  • 4-5 large yellow onions
  • 2/3 cup olive oil, more if needed
  • vegetable oil spray
  • 2/3 cup warm low sodium chicken broth, more if needed
  • 2 large eggs, beaten
  • 2 tablespoons truffle oil (optional)
  • 1 tablespoon kosher salt, or to taste
  • 1 teaspoon black pepper, or to taste
  1. for onions: slice onions thinly, 1/8 inch or so. Heat a 12-inch frying pan (nonstick is fine) with 1/3 cup of the olive oil. Cook onions slowly on medium high heat until the volume is reduced by about 1/2, and the onions are nicely caramelized. This will take at least 20 minutes. Set aside. Note: this step can be done a day or two ahead. Just refrigerate onions, and bring to temp in a microwave before combining with potatoes.
  2. for potatoes: peel and quarter potatoes. Bring to a boil in a large pot filled with salted water. Simmer until a fork goes easily into the potatoes. Drain well. Put the potatoes through a ricer or food mill.
  3. Preheat oven to 350 degrees F. Spray a 9x13 baking dish well with oil spray. Add riced potatoes and onions to dish; mix well to combine. Add remaining oil, and mix well. Add chicken broth 1/4 cup at a time until consistency is the right point between dry/stiff and moist/loose. Season with salt and pepper, and taste. Add more oil and/or chicken broth if desired (be mindful that beaten egg will make the mixture a bit looser). Add beaten eggs and mix well to combine. Dot with the optional truffle oil.
  4. Bake for 30-45 minutes until potatoes reach an internal temperature of 160 degrees F.

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