Caramelized Onion and Horseradish Mashed Potatoes

Total Time
Prep 15 mins
Cook 30 mins

What a wonderful addition to plain mashed potatoes! These go really well with a grilled steak, ribs, or a grilled tuna steak.Originally from Cooking Light, it's comfort food fit for company!

Ingredients Nutrition


  1. Melt 1 tablespoon butter in a medium nonstick skillet over medium-high heat.
  2. Add onion and sugar; sauté 10 minutes or until caramelized.
  3. Remove from heat and stir in vinegar if desired.
  4. Place potatoes in a saucepan and cover with water.
  5. Bring to a boil; reduce heat and simmer for 15-20 minutes or until tender.
  6. Drain and return potatoes to pan.
  7. Add 3 tablespoons butter and milk; mash to desired consistency.
  8. Cook 2 minutes or until thoroughly heated through, stirring constantly.
  9. Combine Dijon mustard and remaining ingredients in a small bowl, stirring with a whisk until blended.
  10. Add Dijon mustard mixture and caramelized onion mixture to potato mixture, stirring to combine.
  11. Serve.


Most Helpful

These were good potatoes served with our roast beef and onion gravy. However, I was disappointed that the horseradish flavor wasn't more pronounced. The caramelized onions added a lot to the blend, though. My hubby really liked that touch.

Ms B. November 07, 2004

It takes a lot to make us go WOW over mashed potatoes, but this was a wow recipe! It was great, easy to make and tasted fantastic. Allow more than 10 minutes to caramelise your onions for a real treat! And the vinegar is a good addition along with the other tangy ingredients. We ate this with lamb in quite a sweet sauce, so it went really well.

JustJanS August 30, 2004

We are such a meat and potato family that when this was served...our reaction was..."What a different recipe!" Loved the mix of the onion, brown sugar, mustard with the kick of horseradish! It was hard to know which way my taste buds were going. These were really good and will be making them again. Thanks for posting!

Aroostook February 22, 2003

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