Potatoes And Onions Au Gratin
Creamy potatoes and onions layered with rich cheeses create a decadent gratin, perfect for comforting family dinners or elegant gatherings with a savory, cheesy flavor profile.
Ingredients
Instructions
- In a large skillet, cook the onions with salt and pepper to taste in 6 tablespoons of butter over moderate heat, stirring occasionally, until they are golden.
- Spoon half the onions into a buttered 4-quart gratin dish; cover them with the potato slices, then sprinkle with salt and pepper.
- Cover the potatoes with the remaining onions; pour the heavy cream over the mixture and sprinkle with the grated Parmesan and Gruyere cheeses.
- Dot the top with the remaining 6 tablespoons of butter and bake in a preheated 400°F (200°C) oven for 30 minutes or until tender and golden brown.
Tips & Substitutions
To enhance the flavor of your Potatoes and Onions Au Gratin, consider adding fresh herbs like thyme or rosemary. If Gruyere is unavailable, you can substitute it with shredded mozzarella or cheddar for a different taste profile. To save time, use pre-sliced potatoes or frozen onion slices, but ensure they are thawed and drained before cooking.
Serving Suggestions
This rich dish pairs beautifully with a simple green salad or roasted vegetables for a balanced meal. For a comforting dinner, serve it alongside grilled chicken or a hearty steak. You can also enhance your meal with a side of garlic bread or serve it as a side with the Easy Baked Stew for a cozy gathering.
Storage & Reheating
Store leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, place the gratin in a preheated oven at 350°F (175°C) for about 15-20 minutes until heated through. You can also microwave individual portions, but for best results, use the oven to maintain the crispy top.
Nutrition & Diet Analysis (per serving)
Each serving of Potatoes And Onions Au Gratin contains roughly 1802 calories, with 24g protein, 60g carbohydrates, and 166g fat. It is an excellent source of vitamin A (155% of the Daily Value), protein (48% of the Daily Value), and calcium (42% of the Daily Value), and a good source of iron and dietary fiber. Note that it is relatively high in sodium, at 848mg per serving (37% of the Daily Value).
Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.
* % Daily Values based on a 2,000 calorie diet (FDA 2020).
Frequently Asked Questions
Can I prepare this dish ahead of time?
Yes, you can prepare the gratin up to the baking stage, cover it tightly, and refrigerate for up to 24 hours. When ready to bake, allow it to come to room temperature for about 30 minutes before placing it in the oven to ensure even cooking.
Can I use other types of cheese?
Absolutely! While Parmesan and Gruyere are traditional, feel free to experiment with other cheeses like Fontina, cheddar, or even a blue cheese for a stronger flavor. Just ensure the cheese melts well to maintain the creamy texture.
What if I want a lighter version of this dish?
For a lighter version, you can use low-fat milk or a combination of milk and broth instead of heavy cream. Additionally, reduce the amount of butter and cheese, and consider adding more vegetables like spinach or mushrooms to boost the nutritional value.
Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).