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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.
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
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.
Add flour, stirring, and cook about 1 minute.
Gradually stir in milk and cook 4 minutes; add cream, salt, and pepper.
Remove skillet from stove top and set aside to cool slightly.
Preheat oven to 400*F.
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).
After taste adjustment, add 1 beaten egg to the cooled onion mixture and whisk thoroughly to combine.
Pour the onion sauce into a lightly sprayed pie dish.
Cover with layer of egg slices and sprinkle with cheese.
Bake until lightly browned, about 15 minutes-depends upon your oven.
Top with bacon crumbles.
Allow to set for 5 minutes so that it will set up and be easier to plate.
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