Real Recipes From Real Home Cooks ®

horseradish mashed potatoes with caramelized onion

(3 ratings)
Recipe by
Vicki Butts (lazyme)
Grapeview, WA

A yummy side dish that can be made ahead.

(3 ratings)
yield 6 serving(s)
prep time 20 Min
cook time 1 Hr
method Bake

Ingredients For horseradish mashed potatoes with caramelized onion

  • 1/4 c
  • 6 Tbsp
  • 2 1/4 lb
    white onions, thinly sliced
  • 3 Tbsp
    balsamic vinegar
  • 2 tsp
    fresh thyme, chopped
  • 3 1/2 lb
    russet potatoes, peeled, cut into 1-inch pieces
  • 7 Tbsp
    whole milk
  • 1/4 c
    prepared horseradish

How To Make horseradish mashed potatoes with caramelized onion

  • 1
    Melt 1/4 cup butter in large skillet over medium heat. Add onions; saute until deep golden, about 30 minutes. Add vinegar and thyme. Reduce heat to low; saute 4 minutes. Season with salt and paper.
  • 2
    Meanwhile, cook potatoes in large pot of boiling salted water until very tender, about 20 minutes. Drain. Return to same pot; mash until smooth. Add 6 tablespoons milk, horseradish and 6 tablespoons butter; stir to blend. Thin with 2 tablespoons milk if necessary. Add 1 to 2 tablespoons more butter if necessary. Season with salt and pepper.
  • 3
    Transfer potatoes to serving dish. Spoon onion mixture atop potatoes. (Can be prepared 8 hours ahead. Cover with foil and refrigerate. Rewarm in 350ºF oven about 30 minutes). Serve hot.

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