INGREDIENTS
2 tbsp
unsalted butter
2
large red onions, thinly sliced
sugar
2
leeks, including tender green portions, thinly sliced
2 cloves
garlic, minced
3 cups
low-sodium chicken broth
3/4 cup
low-sodium beef broth
1/4 cup
dry red wine
2
sprigs fresh parsley
1
sprig fresh thyme
1
bay leaf
Salt and pepper,
Baguette slices, ¾-inch thick
Sliced Gruyere cheese