Spanish Potatoes au Gratin (Patatas Gratinadas)
Cheesy Spanish potatoes au gratin, also known as Patatas Gratinadas, makes a perfect savory side dish for meat or fish.
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Instructions
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Preheat the oven to 350 F.
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Peel and thinly slice potatoes and onion.
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Cut bacon or pancetta into strips; lightly fry, then remove and drain on paper towels.
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Oil a 9x12-inch baking dish, then layer potatoes, onions, and bacon until all ingredients are used.
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Whisk eggs and milk together (add nutmeg if desired), then pour the mixture over the layered potatoes.
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Cover the dish with aluminum foil and bake for 40 minutes.
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Remove foil, sprinkle grated cheese over the top, and return to the oven uncovered for another 5 to 10 minutes, or until the cheese is golden brown.
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Garnish with fresh thyme if desired, then cut into squares and serve.