French Onion Casserole - cooking recipe

Ingredients

4 medium onions, sliced
3 Tbsp. margarine or butter
2 Tbsp. flour
dash of pepper
1/4 c. dry sherry
1 1/2 c. plain croutons
2 Tbsp. melted butter
2 oz. shredded Swiss cheese (1/2 c.)
3 Tbsp. grated Parmesan cheese
3/4 c. bouillon (beef)

Preparation

Cook onions in butter until tender.
Blend in flour and pepper.
Add bouillon and sherry.
Cook and stir until thick and bubbly.
Turn into a 1-quart casserole.