The Kitchn: Cozy casserole warms up chilly days
Cooking spray
1/4 cup all-purpose flour
1 cup dry riesling wine
6 to 8 fresh sage leaves, minced, or 2 teaspoons dried sage
Leaves of 5 sprigs fresh thyme, finely chopped
1 (15-ounce) can white beans and their liquid (optional)
For the topping:
1 large baguette (about 1 pound), cut crosswise into 24 slices
12 ounces Gruyere, Comte or Raclette cheese, shredded
4 tablespoons unsalted butter
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