Potato Horseradish Gratin With Caramelized Onions

Submitted by crispychick

"Not sure where this recipe came from, as I copied it at my sisters because I thought it looked good. Haven't tried it yet, but surely that can't be enough salt for 2 1/2 lbs of potatoes! Otherwise, sounds good with the horseradish."

 

• Ready In: 1hr 20mins
• Ingredients: 11
• Yields: 1 casserole

ingredients

• 2 1⁄2 lbs medium sized baking potatoes
• 1 teaspoon salt, divided
• 1 teaspoon pepper, divided
• 2 cups half-and-half
• 1⁄2 cup creamed horseradish
• 1⁄4 cup butter
• 2 large onions, thinly sliced
• 1 teaspoon sugar
• 1 tablespoon balsamic vinegar
• 1 cup shredded swiss cheese
• 1⁄4 cup chopped fresh parsley, divided

directions

1. Cook potatoes in boiling water to cover; about 20 minutes or until almost tender. Drain and cool slightly. Peel potatoes and cut into 1/4 inch thick slices. Arrange potaotes in a lightly greased 13x9 inch casserole dish. Sprinkle with 1/2 t salt and 1/2 t pepper.
2. Stir together the half and half and the horseradish and pour over potatoes.
3. Bake, covered at 400 degrees for 40 minutes.
4. Melt butter in large skillet over medium heat. Add onion, remaining salt and pepper and sugar. Saute and top potatoes then cheese and run under broiler.