Ingredients for Horseradish Mashed Potatoes With Caramelized Onions
- 1/2 cup (1 stick) butter
- White Onions
- Balsamic Vinegar
- Fresh Thyme
- Russet Potatoes
- Whole Milk
- Prepared Horseradish
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How to Make Horseradish Mashed Potatoes With Caramelized Onions
- Melt 1/4 cup (1/2 stick) butter in a large skillet over medium heat.
- Add 2 large yellow onions, thinly sliced.
- Sauté until deeply golden brown and caramelized, about 30 minutes, stirring occasionally.
- Add 2 tablespoons red wine vinegar and 1 teaspoon fresh thyme leaves.
- Reduce heat to low.
- Sauté for 4 minutes more, allowing the flavors to meld.
- Season generously with salt and freshly ground black pepper.
- Meanwhile, peel and chop 2 pounds Idaho potatoes into 1-inch pieces. Place in a large pot and cover with cold salted water.
- Bring to a boil and cook until very tender, about 20 minutes.
- Drain the potatoes thoroughly.
- Return the potatoes to the pot.
- Mash until completely smooth using a potato masher or electric mixer.
- Add 6 tablespoons (3/4 stick) butter, 1/2 cup milk, and 2 tablespoons prepared horseradish.
- Stir until everything is well combined and creamy.
- Thin with 2 tablespoons more milk if needed to reach your desired consistency.
- Stir in 1-2 tablespoons more butter for extra richness, if desired.
- Season generously with salt and freshly ground black pepper to taste.
- Transfer the mashed potatoes to a serving dish.
- Spoon the caramelized onion mixture evenly over the potatoes.
- Serve immediately while hot.
Nutrition Information (Approximate per serving)
Sodium
8 g
Sugar
44g
Fat
63g
Carbs
21g
