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Onions Au Gratin

5 | 5 Reviews
Total Time:Prep: 15 min. Bake: 25 min.

Recipe by Christine Halandras, Meeker, Colorado

Tested by Taste of Home Test Kitchen

Taste of Home's Editorial Process

Updated on Oct. 22, 2022

Most everyone cooks with onions, but few think of serving them as a vegetable side dish. My family really loves this recipe.—Christine Halandras, Meeker, Colorado

TEST KITCHEN APPROVED

Onions Au Gratin

5 | 5 Reviews Add your review
Yield:8 servings
Prep:15 min
Cook:25 min
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Ingredients

  • 6 medium yellow onions
  • 1/4 cup butter, cubed
  • 2 tablespoons all-purpose flour
  • 1/2 cup beef broth
  • 1/2 cup heavy whipping cream
  • 1/4 teaspoon salt
  • 1/8 teaspoon pepper
  • 1/2 cup shredded Swiss cheese
  • 1/2 cup grated Parmesan cheese
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Directions

  1. Cut onions into 1/2-in. slices; saute in butter until tender. Place in a greased 8-in. square baking dish.
  2. In a small bowl, stir the flour, broth, cream, salt and pepper until smooth; pour over onions. Sprinkle with cheeses.
  3. Bake, uncovered, at 350° for 25-30 minutes or until cheese is golden brown and mixture is bubbly.

Nutrition Facts

1 cup: 203 calories, 15g fat (9g saturated fat), 46mg cholesterol, 303mg sodium, 13g carbohydrate (8g sugars, 2g fiber), 6g protein.