Caramelized Onion, Swiss & Gruyere Mashed Potatoes

Yes, really. All those ingredients.


You’re welcome.

Actually, we first have Emily from the Daily Garnish to thank for this one — she came up with the idea, and then I adapted it, making it totally not vegan. I made it her way last Thanksgiving, changed it a little bit at Christmas, and then made it my own this year.

I used A LOT of potatoes and onions for this recipe. After all, I was cooking for 25 people.

Don’t believe me? Check it out.

That’s nine pounds of potatoes and eight onions. Yup.

That’s two big pots full of potatoes…

And a huge bowl full of diced onions.

… which resulted in two — yes, two — 9 x 13 pans-full of mashed potatoes.

Don’t worry. I’m scaling the recipe down for you here.

Caramelized Onion, Swiss & Gruyere Mashed Potatoes

makes about 10 servings


  • 2 tbs olive oil
  • 3-4 sweet onions
  • ~4-6 pounds (about 7-9 medium) potatoes
  • 2 tbs butter
  • 1/4 cup heavy cream
  • 1/2 cup shredded swiss & gruyere
  • salt & pepper to taste


Dice onions.

Heat a heavy-bottomed skillet over low heat. Pour olive oil in and add onions and a pinch of salt. Cover. Cook for about 40 minutes, stirring often! You want to let your onions get a lovely even light brown color without actually burning or browning them. The key is to keep the heat low.

While your onions are caramelizing, quarter the potatoes. Put them in a pot and cover with cold water. Bring the water to a boil and then cook the potatoes at a simmer for about twenty minutes or until the potatoes are tender.

Drain potatoes and put into a bowl. Add cream, butter, salt and pepper.


Blend with an electric mixer.

Set electric mixer aside and add caramelized onions (once they’re done). Use a spoon to mix the onions in. Add cheese and mix completely.


I promise you — you will love this dish.

You can quote me on that.



Filed under Blog Posts, Recipes

4 responses to “Caramelized Onion, Swiss & Gruyere Mashed Potatoes

  1. That is a lot of onion YUM. Why do we have boring potatoes all the time, you can put practically anything in them. Great idea, I might just try this soon.

  2. Health Freak College Girl

    ooh wow i need to make this for my family!

  3. I want this. I want this now. SAD! I need more caramelized onions in my life.

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