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Scalloped potatoes and onions on a blue plate with a silver fork
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Scalloped Potatoes and Onions

Scalloped Potatoes and Onions is a creamy dream of a side dish. Potatoes and onions sliced thin and bathed in a creamy horseradish whit roux. Supper has never tasted so good!


Course Side Dishes
Cuisine American
Prep Time 5 minutes
Cook Time 1 hour
Total Time 1 hour 5 minutes
Servings 8
Calories 314kcal
Author Brooke Burks

Ingredients

  • 3 tablespoons butter
  • 1 tablespoon olive oil
  • 3 tablespoons plain flour
  • 3 cups milk
  • a pinch of nutmeg
  • 1 teaspoon garlic
  • Salt and pepper to taste
  • 1 tablespoon Horseradish
  • ½ large yellow or sweet onion sliced thin
  • 3 medium to large potatoes sliced thin
  • 1 cup cheddar cheese
  • 1 tablespoon butter melted
  • 1 cup breadcrumbs
  • 1 teaspoon parsley

Instructions

  • Preheat oven to 375 degrees Fahrenheit
  • In a skillet, heat 3 tablespoons butter and olive oil over medium heat until
    melted.
  • Sprinkle in flour and mix. Cook 1 or 2 minutes to brown slightly and cook out flour
    taste.
  • Slowly drizzle in milk and whisk until thickens. Lower heat to low and add in nutmeg,
    garlic, salt, pepper and horseradish to taste. Remove from heat.
  • In a lightly greased casserole dish, spoon some roux in and spread around on the
    bottom. layer onions and then potatoes. Spoon more roux on top and add cheese.
    Do this layering technique as many times as you wish, stopping with cheese and
    roux on final layer.
  • Mix breadcrumbs and 1 tablespoon melted butter with parsley. Sprinkle over the top
    and bake for 45 minutes to 1 hour or until bubbly and golden brown. Allow to rest and cool for a bit before serving.

Nutrition(All values are estimates only)

Serving: 1serving | Calories: 314kcal | Carbohydrates: 34g | Protein: 11g | Fat: 15g | Saturated Fat: 8g | Polyunsaturated Fat: 6g | Cholesterol: 38mg | Sodium: 347mg | Fiber: 3g | Sugar: 4g