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Sweet Potato and Butternut Gratin

Cooking Light

Photo: Becky Luigart-Stayner; Styling: Tiffany Vickers

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Worthy of a Special Occasion

Pancetta is Italian cured pork, similar to cured bacon, which you can substitute, if necessary. Smoked bacon will also work, if you prefer the flavor.

Yield: 8 servings (serving size: about 1/2 cup)

Ingredients

  • 2  tablespoons  butter
  • 1  ounce  pancetta, chopped
  • 1/4  cup  chopped shallots
  • 2  garlic cloves, minced
  • 1.38  ounces  all-purpose flour, divided (about 5 tablespoons)
  • 1  teaspoon  chopped fresh thyme
  • 2  cups  2% reduced-fat milk
  • 3/4  cup  (3 ounces) grated fresh Parmigiano-Reggiano cheese
  • 1/2  teaspoon  salt
  • 1/2  teaspoon  freshly ground black pepper
  • 1/8  teaspoon  ground red pepper
  • 1  pound  baking potato, peeled and cut into 1/8-inch-thick slices
  • 8  ounces  sweet potato, peeled and cut into 1/8-inch-thick slices
  • 8  ounces  butternut squash, peeled and cut into 1/8-inch-thick slices
  • Cooking spray
  • 1/3  cup  (1 1/2 ounces) shredded Gruyère cheese

Preparation

1. Preheat oven to 375°.

2. Melt butter in a small saucepan over medium-high heat. Add pancetta; cook 1 minute. Add shallots and garlic; cook 2 minutes, stirring constantly. Weigh or lightly spoon 1.1 ounces (about 1/4 cup) flour into a dry measuring cup; level with a knife. Add to pan; cook 2 minutes, stirring constantly with a whisk. Stir in thyme. Gradually add milk, stirring constantly with a whisk; cook over medium heat until slightly thick (about 3 minutes), stirring constantly. Stir in Parmigiano-Reggiano; cook 3 minutes or until cheese melts. Stir in salt and peppers. Remove from heat.

3. Cook baking potato in boiling water 4 minutes or until almost tender; remove with a slotted spoon. Cook sweet potato in boiling water 4 minutes or until almost tender; remove with a slotted spoon. Cook butternut squash in boiling water 4 minutes or until almost tender; drain. Sprinkle vegetables evenly with remaining 1 tablespoon flour. Arrange potatoes and squash in alternating layers in a broiler-safe 11 x 7-inch baking dish coated with cooking spray; spoon sauce over potato mixture. Top with Gruyère. Bake at 375° for 40 minutes.

4. Preheat broiler. Broil 3 minutes or until golden. Let stand 10 minutes.

Nutritional Information

Calories:
220
Fat:
8.7g (sat 5.2g,mono 2.2g,poly 0.3g)
Protein:
9.7g
Carbohydrate:
26.2g
Fiber:
2.6g
Cholesterol:
25mg
Iron:
1.3mg
Sodium:
418mg
Calcium:
259mg
Cooking Light, NOVEMBER 2009