Onion Gratin
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 ⓘ
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.
Nutrition & Diet Analysis (per serving)
965
kcal
48% DV
Protein
Fat
Carbs
* % Daily Values based on a 2,000 calorie diet (FDA 2020).