Potato Gratin with Parmesan and Caramelized Onions
- Active Time 30m
- Total Time 1h 25m
- 1 1/2 pounds Yukon Gold potatoes
- 1 teaspoon canola oil
- 1 teaspoon olive oil
- 2 medium onions, thinly sliced
- 1 small garlic clove, minced
- 1/4 teaspoon minced rosemary
- 1/4 teaspoon minced sage
- 1/4 teaspoon minced thyme
- Salt and pepper
- Vegetable oil cooking spray
- 1/2 cup freshly grated Parmesan cheese (about 2 ounces), divided
- 3 large egg whites plus 2 large whole eggs
- 3/4 cup skim milk
- 3 tablespoons nonfat dry milk
- 1/8 teaspoon freshly grated nutmeg
In a steamer basket, steam the potatoes until tender, about 20 minutes. Let the potatoes cool slightly, then peel and cut them into 1/4 inch-thick slices.
Meanwhile, heat the canola and olive oils in a medium skillet. Add the onions and cook over moderately high heat, stirring occasionally, until softened and just beginning to brown, about 5 minutes. Reduce the heat to moderately low and cook, stirring, until caramelized, about 15 minutes; add 1 to 2 tablespoons of water if the skillet is dry. Stir in the garlic, rosemary, sage and thyme and season with salt and pepper.
Preheat the oven to 350 degrees F. Coat a 9-inch deep-dish pie pan with cooking spray. Arrange half of the potato slices in the pie pan, overlapping them slightly, and season with salt and pepper. Top with the onions and half of the Parmesan cheese. Cover with the remaining potato slices.
In a bowl, mix the egg whites, whole eggs, skim milk, dry milk and nutmeg and season with salt and pepper. Pour the egg mixture (custard) over the potatoes and sprinkle the remaining Parmesan on top. Bake the gratin for about 45 minutes, or until the custard is set and the top is golden. Let the gratin rest for 10 minutes before serving.
Recipe reprinted by permission of Food and Wine. All rights reserved.
nutrition information per serving
347 calories; 9g total fat; 120mg cholesterol; 432mg sodium; 44g carbohydrates; 3g fiber; 21g protein
These nutrition facts are calculated according to the ingredients listed in this recipe. Any substitutions will change these facts. Although we strive for accuracy, please note that food manufacturers occasionally change their food formulas, which could affect the calculations as shown.
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