3 qt. beef broth
1/4 c. vegetable oil
1/4 c. all-purpose flour
1/3 c. butter
6-7 c. thinly sliced yellow onions
1 tsp. sugar
Salt and freshly ground pepper
1-2 lb. Gruyere cheese, grated
French bread, sliced

Melt 1/3 cup butter with the oil in Dutch oven; stir in onions, sprinkle with sugar. Cook 20-30 minutes until golden brown, stir occasionally. Sprinkle flour over onions; stir and cook 1 minute. Stir in beef broth, salt and pepper. Reduce heat, cover and simmer 30 minutes.

Heat oven to broil, spread both sides of French bread lightly with butter. Toast bread until golden, about 3 minutes. Pour soup in individual bowls. Place bread slices in each, sprinkle with cheese, return to broiler and broil until cheese melts, 1 minute.