Step 1: Preheat the Oven and Prepare Ingredients
- Preheat Oven: Set your oven to 400°F (200°C).
- Prepare Potatoes and Onions: Peel and slice the potatoes into thin rounds, about 1/8 inch thick. If using onions, slice them thinly.
Step 2: Make the Sauce
- Melt Butter: In a saucepan over medium heat, melt the butter. Add the minced garlic and sauté until fragrant, about 1 minute.
- Add Flour: Sprinkle the flour over the butter and garlic, whisking to form a smooth roux. Cook for about 2 minutes to remove the raw flour taste.
- Pour in Milk and Cream: Gradually add the milk and heavy cream, whisking constantly to prevent lumps. Bring the mixture to a simmer and let it thicken slightly, about 4-5 minutes.
- Season: Add salt, pepper, and a pinch of nutmeg. Adjust seasoning to taste.
Step 3: Assemble the Dish
- Layer Potatoes and Onions: In the baking dish, layer half of the potato slices, overlapping them slightly. If using onions, sprinkle half over the first layer of potatoes. Pour half of the creamy sauce over the first layer, then sprinkle with half of the grated cheese.
- Repeat Layers: Repeat with the remaining potatoes, onions (if used), sauce, and cheese.
Step 4: Bake
- Cover and Bake: Cover the dish with aluminum foil and bake in the preheated oven for 30 minutes.
- Uncover: Remove the foil and continue baking for an additional 30-40 minutes, or until the top is golden and bubbly and the potatoes are tender.
Step 5: Serve
- Cool Slightly: Let the scalloped potatoes stand for about 10 minutes before serving. This allows the sauce to thicken slightly and makes serving easier.
Conclusion
Scalloped potatoes are a creamy, savory dish that’s perfect for almost any occasion. The layers of potato become tender and flavorful, soaked in a rich, cheesy sauce that’s irresistible. Serve alongside roasted meats or with a fresh salad for a complete meal. Enjoy the comforts of this traditional dish, knowing it will be a sure hit with family and friends.