Rich, comforting, and layered with tender potatoes and bubbling cheese, a homemade creamy potato bake is the ultimate comforting side dish. Whether you call it au gratin or scalloped potatoes, it’s a foolproof crowd-pleaser that pairs wonderfully with everything from roasted meats to cozy soups.
Creamy Potato Bake
Ingredients
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3 lbs Yukon Gold or Russet potatoes, peeled and sliced thin (about 1/8-inch thick using a mandoline for even cooking)
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1.5 cups heavy cream (or half-and-half)
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1 cup whole milk
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3 cloves garlic, minced
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2.5 cups freshly shredded cheese (Gruyère, sharp cheddar, or a mix of both)
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2 tbsp unsalted butter
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2 tbsp all-purpose flour (optional, if you want a slightly thicker sauce)
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1 tsp salt
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1/2 tsp black pepper
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1/4 tsp ground nutmeg (adds a classic, subtle depth of flavor)
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Fresh herbs: A pinch of chopped fresh thyme or parsley for topping
Step-by-Step Instructions
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Preheat and Prep: Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with butter or cooking spray.
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Make the Garlic Cream Sauce: In a medium saucepan over medium heat, melt the butter. Stir in the minced garlic and cook for about 1 minute until fragrant. Whisk in the flour (if using) for 30 seconds, then slowly pour in the heavy cream and milk while whisking constantly. Bring to a gentle simmer, then season with salt, pepper, and nutmeg. Let it warm through for 2 minutes, then remove from heat.
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Layer the Potatoes: Arrange half of your thinly sliced potatoes in the bottom of your prepared baking dish, overlapping them slightly. Sprinkle half of your shredded cheese over the potatoes.
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Repeat and Pour: Layer the remaining potato slices on top. Pour the warm cream and garlic mixture evenly all over the potatoes, making sure it seeps down into the layers.
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Cover and Bake: Cover the baking dish tightly with aluminum foil (this traps steam so the potatoes cook all the way through without drying out). Bake at 375°F for 45 minutes.
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Brown the Top: Remove the foil, sprinkle the remaining shredded cheese evenly across the top, and return to the oven uncovered for another 20 to 25 minutes, or until the potatoes are fork-tender and the top is deeply golden-brown and bubbling.
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Rest and Serve: Let the potato bake rest for at least 15 minutes before slicing and serving. This allows the creamy sauce to set up so it doesn’t run all over the plate!