French Onion Casserole

I have had this recipe for years and don't remember where I got it. Some times I like to replace the sliced onions with pearl onions instead.

• Ready In: 30 mins
• Serves: 4

Ingredients

• 4  medium onions, sliced
• 3  tablespoons butter or 3  tablespoons margarine
• 2  tablespoons flour
•  salt, to taste
• 1  dash pepper
• 3⁄4 cup  beef bouillon
• 1⁄4 cup sherry wine
• 1 1⁄2 cups croutons, plain
• 2  tablespoons butter, melted
• 1⁄2 cup swiss cheese, shredded
• 3  tablespoons parmesan cheese, grated (optional)

Directions

1. Cook onions in butter, just until tender.
2. Blend in flour, salt, and pepper.
3. Add bouillon and sherry.
4. Cook and stir until thickened and bubbly.
5. Turn into 1 quart casserole.
6. Toss croutons with 2 tablespoons melted butter and spoon on the onion mixture, evenly.
7. Sprinkle with Swiss cheese and Parmesan if desired.
8. Put in oven under broiler and broil for about 1 minute until the cheese melts.
9. Serve immediately.