Learn how to prepare the perfect classic dish of scalloped potatoes by following the recipe step-by-step. These potatoes are creamy and cheesy. Cooking scalloped potatoes at 350 degrees Fahrenheit according to the instructions in this article will guarantee that you get great results each and every time.
Is Good To Cook Scalloped Potatoes At 350?
Yes, cooking scalloped potatoes at 350 degrees Fahrenheit is a good temperature to ensure even cooking without burning or drying out the dish. It’s important to periodically check the potatoes for doneness while cooking, which should take approximately 45 minutes to an hour.
How To Prepare Scalloped Potatoes Before Baking?
- To prepare delicious scalloped potatoes, start by preheating your oven to 375°F (190°C).
- Then, slice 4-5 medium potatoes thinly and layer them in a buttered baking dish, seasoning each layer with salt, pepper, and herbs if desired.
- Next, make a white sauce by mixing 2 cups of heavy cream or milk with 2-3 tablespoons of flour, salt, and pepper.
- Pour the sauce over the potatoes, making sure to cover them completely.
- Bake for 45-50 minutes until golden brown on top and tender. Let cool before serving.

Scalloped Potatoes Ingredients:
- 4-5 medium potatoes
- 2 cups heavy cream or whole milk
- 2-3 tablespoons all-purpose flour
- Salt and pepper, to taste
- Dried thyme or rosemary, optional
- 2 tablespoons butter, for greasing the dish
How To Cook Scalloped Potatoes At 350
- Preheat the oven to 375°F (190°C). Grease a 9×13 inch baking dish with butter.
- Slice the potatoes into 1/8 inch thick rounds.
- In a medium saucepan, heat the cream or milk over medium heat until hot but not boiling.
- In a small bowl, whisk together the flour with a small amount of the hot cream or milk to form a smooth paste. Gradually whisk in the remaining cream or milk, making sure to eliminate any lumps.
- Cook the sauce over medium heat, stirring continuously, until it thickens, about 3-5 minutes. Season with salt and pepper to taste.
- Layer half of the potato slices in the bottom of the prepared dish, seasoning each layer with salt, pepper, and dried herbs (if using).
- Pour half of the sauce over the potatoes, spreading it evenly. Repeat layering with the remaining potatoes and sauce.
- Cover the dish with aluminum foil and bake for 30 minutes. Remove the foil and bake for another 15-20 minutes, or until the top is golden brown and the potatoes are tender.
- Let the scalloped potatoes cool for a few minutes before serving. Enjoy!
How Long To Cook Scalloped Potatoes At 350
To cook scalloped potatoes at 350°F (175°C), bake them for 45-55 minutes, but adjust the cooking time based on the size of the dish and thickness of the potato slices. It’s important to check the potatoes every 20-30 minutes to ensure even cooking and prevent over-browning. The dish is done when the top is golden brown and the potatoes are tender when pierced with a fork. Learn More about How Long To Cook Sweet Potatoes At 350.
How Long To Cook Scalloped Potatoes In The Air Fryer :
When cooking scalloped potatoes in an air fryer at 350°F (175°C), it typically takes about 20-25 minutes to cook. To ensure even cooking and prevent over-browning, check the potatoes every 10-15 minutes. The scalloped potatoes are ready when they have a golden brown top and tender potatoes.

How Long To Cook Scalloped Potatoes The Instant-Pot:
Cooking scalloped potatoes in an Instant Pot is a quick alternative to using an oven. To cook at 350°F (175°C), pressure cook for 6-8 minutes and let the pressure release naturally for 10-15 minutes before opening. The dish is ready when the potatoes are tender and the sauce is heated through, but cooking time may vary based on the thickness of the potato slices and the size of the dish.
How Long To Cook Scalloped Potatoes On The Stove/Skillet:
To cook scalloped potatoes on the stove, it usually takes about 10-15 minutes of simmering after adding the potato slices to the sauce.

How Long To Cook A Frozen Scalloped Potatoes At 350:
When cooking frozen scalloped potatoes in the oven at 350°F (175°C), it typically takes 1 to 1 1/4 hours to cook. However, cooking time may vary depending on the dish size and thickness of the potato slices. To ensure even cooking, it’s best to thaw the potatoes in the refrigerator overnight before baking as instructed in the recipe.
To ensure that scalloped potatoes are safe to eat, it’s important to check their internal temperature. Use a meat thermometer to ensure that the potatoes reach an internal temperature of at least 165°F (74°C). This will help ensure that any harmful bacteria or pathogens are destroyed and that the dish is safe to consume.
Should Scalloped Potatoes Be Covered While Baking?
Covering the dish with foil while baking scalloped potatoes can help retain moisture and prevent them from drying out. However, baking them uncovered allows the top layer to brown and become crispy.
For a creamy texture, it’s recommended to cover the dish with foil for the first part of the cooking time and then remove it for the last 10-15 minutes of baking to allow the top to brown. This ensures that the potatoes and sauce remain moist while providing a crispy topping.
Scalloped potatoes are done when the potatoes are tender and the sauce is heated through. Use a fork or a meat thermometer to check that the internal temperature is 165°F (74°C) or higher. The top of the dish should be golden brown and the sauce should be bubbly. Bake for an additional 5-10 minutes if needed.
FAQ Section
Why won’t my scalloped potatoes get done?
Scalloped potatoes should be baked at the right temperature and time according to a recipe. Undercooked potatoes might come from thickly sliced potatoes or waxy potatoes. Slice thickness determines cooking time.
Why are my scalloped potatoes still crunchy?
If your oven heats unevenly, rotate the scalloped potatoes halfway through cooking and check for doneness in different sections to avoid undercooked potatoes. This prevents undercooked or crispy potatoes and ensures even cooking.
Will scalloped potatoes thicken as they cool?
After baking, let scalloped potatoes cool for optimal texture. This firms potatoes and thickens cream sauce before serving. Potatoes should rest for 15 minutes. Potatoes may be difficult to serve with heavy cream sauce.
How do you keep scalloped potatoes from being watery?
If you prefer a thicker scalloped potato sauce, cook it for a minute or two longer than the recipe calls for and then add the cheese. This makes a thick, wonderful sauce. Instead of fat-free milk, thicken the sauce with whole or 2% milk. These strategies can help you prepare a thicker, tastier scalloped potato sauce.
Can you bake scalloped potatoes ahead of time and reheat?
Bake the Scalloped Potatoes ahead of time and let them cool to room temperature. Refrigerate after foiling. The foil-wrapped dish can be baked at 350 degrees for 30 minutes.
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