Ingredients
3largewhite onions,sliced
3tbspbutter
2tbspbrown sugar
64ozBeef Broth
1tbspWorcestershire sauce
1clove garlic,minced
⅓cupdry sherry
4sprigs fresh thyme,or 1 tsp dried Thyme
1bay leaf
8dry french bread,slices
¾cupGruyere cheese,shredded
½cupEmmental cheese,shredded
6tbspfresh parmesan cheese
Preparation
In a large non-stick pan, cook onions, butter and brown sugar over medium-low heat until golden and caramelized. This will take about 20 minutes.
Once golden, add to the slow cooker along with remaining ingredients except bread and cheeses.
Cook on Low for 6 to 8 hours.
Remove and discard bay leaf and ladle the soup into bowls. Top with dry bread slices and cheeses. Broil 2 to 3 minutes or until cheese is melted and browned.