4 tbsp. unsalted butter
4 lg. sweet or Walla Walla onions, sliced
1 tbsp. sugar
6 c. beef broth, divided
2 tbsp. Worcestershire sauce
Salt and pepper to taste
4 thick slices French bread
Additional unsalted butter
Garlic salt or 1 garlic clove, halved
1 c. (4 oz.) shredded Gruyere or Swiss cheese

In a Dutch oven melt butter over medium heat. Saute onions until tender. Sprinkle sugar over onions. Add other ingredients. Reduce heat and cook, stirring occasionally, until onions are caramelized, about 20 minutes.

Broil bread until brown on both sides. Ladle soup in bowls. Float a slice of bread on each. Sprinkle with cheese. Broil to melt cheese and serve.