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Onion Gratin

At a Glance

Prep
15 minutes
Cook
60 minutes
Total
1 hr
Servings
6.00 serving(s)

Categories

  • Casserole

Cuisine

  • French

Cooking Method

  • Bake

Difficulty

  • Easy

Dietary

  • omni

Servings & Nutrition

Original recipe serves 6. Current scale: 1x.

Calories 115 per serving 690 for selected servings
Fat 8g per serving 48g for selected servings
Sugar 1.5g per serving 9g for selected servings
Protein 4.7g per serving 28g for selected servings
Carbohydrates 5.7g per serving 34g for selected servings

Nutrition and servings are approximate based on the ingredient list. Please verify for dietary or medical needs.

This recipe for Onion Gratin brings together 2 tablespoons butter, 3 cups onions, quartered and thinly sliced, 2 tablespoons all-purpose flour in a practical dish for home cooking. It takes about 1 hr to prepare and cook. It makes approximately 6 servings.

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Ingredients

  • 2 tablespoons butter
  • 3 cups onions, quartered and thinly sliced
  • 2 tablespoons all-purpose flour
  • 1 1/4 cups milk
  • 1/2 cup light cream
  • 1/2 teaspoon salt, to taste
  • 1/4 teaspoon pepper, to taste
  • 1 egg, beaten
  • 3 hard-boiled eggs, thinly sliced
  • 1 cup gruyere cheese or 1 cup swiss cheese, grated
  • 2 tablespoons bacon, crisply cooked, crumbled-or 4 strips

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Instructions

  1. In a large size heavy skillet melt the butter and cook the onions over medium heat until soft, between 15 and 20 minutes, stirring frequently with a wooden spoon. You do NOT want the onions to be crunchy later.

  2. Add flour, stirring, and cook about 1 minute.

  3. Gradually stir in milk and cook 4 minutes; add cream, salt, and pepper.

  4. Remove skillet from stove top and set aside to cool slightly.

  5. Preheat oven to 400*F.

  6. When oven is pre-heated, taste sauce and adjust with more salt and pepper to suit your taste preferences (I like to add quite a bit more pepper).

  7. After taste adjustment, add 1 beaten egg to the cooled onion mixture and whisk thoroughly to combine.

  8. Pour the onion sauce into a lightly sprayed pie dish.

  9. Cover with layer of egg slices and sprinkle with cheese.

  10. Bake until lightly browned, about 15 minutes-depends upon your oven.

  11. Top with bacon crumbles.

  12. Allow to set for 5 minutes so that it will set up and be easier to plate.

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