This Vegetarian French Onion Soup is a celebration of the onion. Instead of beef broth, which masks the onion, the slowly caramelized onions make their own sweet, deeply flavorful broth as they cook.
Soup takes 2 1/2 - 5 hours to prepare, depending on how long the onions are caramelized. Most of the time is inactive, while the onions caramelize unattended.
Prep Time 15 minutes
Cook Time 3 hours 15 minutes
Total Time 3 hours 30 minutes
Nutrition information assumes Gruyère and 2 slices of bread per serving.