Buttermilk Scalloped Potato Onion with Swiss Cheese
Get ready to elevate your side dish game with this Buttermilk Scalloped Potato Onion with Swiss Cheese recipe—a decadent combination of tender, thinly sliced Russet potatoes, sweet caramelized onions, and a velvety buttermilk and heavy cream sauce infused with garlic and a hint of nutmeg. Topped with the rich, nutty flavor of melted Swiss cheese, this oven-baked masterpiece boasts golden, bubbly perfection. Perfect for holiday gatherings or comforting weeknight dinners, this dish layers irresistible flavor in every bite. Garnish with fresh parsley for a vibrant finish, and serve warm to impress family and guests alike. Keywords: buttermilk scalloped potatoes, caramelized onions, Swiss cheese potato bake, cheesy potato side dish.
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Recipe Information
Ingredients
- 6 medium Russet potatoes
- 2 large Yellow onions
- 3 tablespoons Butter
- 2 cloves Garlic
- 2 tablespoons All-purpose flour
- 2 cups Buttermilk
- 1 cup Heavy cream
- 2 cups Swiss cheese
- 1.5 teaspoons Salt
- 0.5 teaspoons Black pepper
- 0.25 teaspoons Nutmeg
- 2 tablespoons Fresh parsley (optional, for garnish)
Instructions
Preheat your oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish with butter or non-stick cooking spray.
Peel the potatoes and slice them thinly (about 1/8-inch thick) using a sharp knife or a mandoline slicer. Set aside in cold water to prevent browning.
Slice the onions thinly. In a large skillet, melt 2 tablespoons of butter over medium heat. Add the onions and cook, stirring occasionally, for about 10-12 minutes or until they are golden and caramelized. Remove from heat and set aside.
Mince the garlic. In the same skillet, melt the remaining 1 tablespoon of butter over medium heat. Add the garlic and sauté for 1 minute until fragrant.
Sprinkle the flour over the garlic and stir continuously to make a roux. Cook for 1-2 minutes to eliminate the raw flour taste. Slowly whisk in the buttermilk and heavy cream, stirring until the mixture thickens and starts to bubble.
Reduce the heat to low and stir in 1 and 1/2 cups of shredded Swiss cheese. Season the sauce with salt, black pepper, and nutmeg. Reserve the remaining 1/2 cup of Swiss cheese for topping.
Drain the potatoes and pat them dry. Layer one-third of the potato slices evenly in the prepared baking dish. Spread about one-third of the caramelized onions over the potatoes and pour one-third of the cheese sauce on top. Repeat the layering process with the remaining potatoes, onions, and cheese sauce.
Sprinkle the reserved 1/2 cup of Swiss cheese evenly over the top layer.
Cover the dish tightly with aluminum foil and bake in the preheated oven for 50 minutes. Remove the foil and bake for an additional 20-25 minutes or until the top is golden brown and bubbly, and the potatoes are tender when pierced with a knife.
Remove the dish from the oven and let it rest for 10 minutes before serving. Sprinkle with chopped fresh parsley if desired.
Serve warm and enjoy this creamy, cheesy, and flavorful side dish!
Nutrition Facts
Calories |
2998 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 142.4 g | 183% | |
| Saturated Fat | 83.9 g | 420% | |
| Polyunsaturated Fat | 2.4 g | ||
| Cholesterol | 468 mg | 156% | |
| Sodium | 4939 mg | 215% | |
| Total Carbohydrate | 301.7 g | 110% | |
| Dietary Fiber | 24.2 g | 86% | |
| Total Sugars | 51.9 g | ||
| Protein | 112.8 g | 226% | |
| Vitamin D | 6.7 mcg | 34% | |
| Calcium | 2886 mg | 222% | |
| Iron | 14.3 mg | 79% | |
| Potassium | 7223 mg | 154% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
