Onion Gratin

Directions

1. 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. 2
   Add flour, stirring, and cook about 1 minute.
3. 3
   Gradually stir in milk and cook 4 minutes; add cream, salt, and pepper.
4. 4
   Remove skillet from stove top and set aside to cool slightly.
5. 5
   Preheat oven to 400*F.
6. 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. 7
   After taste adjustment, add 1 beaten egg to the cooled onion mixture and whisk thoroughly to combine.
8. 8
   Pour the onion sauce into a lightly sprayed pie dish.
9. 9
   Cover with layer of egg slices and sprinkle with cheese.
10. 10
    Bake until lightly browned, about 15 minutes-depends upon your oven.
11. 11
    Top with bacon crumbles.
12. 12
    Allow to set for 5 minutes so that it will set up and be easier to plate.