This hearty, homey take on French onion soup celebrates Georgia-grown Vidalia onions.

This hearty, homey take onFrench onion soupcelebratesGeorgia-grown Vidalia onions, which typically come into season in late April.

Ingredients

1/4cupunsalted butter

5medium Vidalia onions, thinly sliced (about 3 lb.)

French Onion Soup Casserole

Credit: Jennifer Causey; Prop Styling: Christine Keely; Food Styling: Torie Cox

2tsp.kosher salt

1/2tsp.black pepper

3thyme sprigs

2flat-leaf parsley sprigs

2bay leaves

1(16-oz.)

Toast baguette slices:

Meanwhile, preheat oven to 350F.

Arrange baguette slices in a single layer on a baking sheet.

Bake in preheated oven until lightly toasted, 12 minutes.

Make sauce:

Remove and discard thyme and parsley sprigs and bay leaves from onion mixture.

Add flour, and cook, stirring constantly, 2 minutes.

Add broth and sherry; bring to a boil over high.

Boil, stirring constantly, until slightly thickened, 2 to 3 minutes.

Assemble casserole:

Layer half of the toasted baguette slices in a 13- x 9-inch baking dish.

Spoon onion mixture evenly over bread.

Top evenly with remaining baguette slices.

Sprinkle with cheese; cover with aluminum foil.

Bake casserole:

Bake in preheated oven 30 minutes.

Increase heat to broil.

Remove foil; broil until cheese is bubbly, about 3 minutes.

Sprinkle with thyme leaves.