Baked French Onion Soup Casserole
This baked onion casserole with french bread is easier to make than french onion soup and just as yummy.
This incredibly tasty soup and casserole combo is the perfect dish for a fall dinner. Our decadent recipe for a french onion soup casserole is easy to cook up. Simpler than traditional soup recipes, this easy peasy treat involves minimal prep. Just carmelize your onions and then set your baked onion casserole with french bread in the oven to sizzle on its own.
From the Chef: When people ask what my favorite thing to cook is, I usually say it's something that lets me stand over the stove and stir, but then allows me to leave it behind and socialize. This dish is a good example of just that. I love the act of sautéing the onions and garlic, watching the butter melt, and patiently waiting as the onions decide to brown. At just the right time, when my guests arrive and I want to step away from the stove, this casserole is ready to be poured into a pan and baked. It's a sit-by-the-fire, read-a-book, and snuggle-up kind of casserole, one that I hope you enjoy as much as I do.
- Addie Gundry
This recipe is from RecipeLion's 103 Cookbook series, Family Favorite Casserole Recipes: 103 Comforting Breakfast Casseroles, Dinner Ideas, and Desserts Everyone Will Love.
Why You'll Love This Casserole Recipe
There are so many reasons why you should make our Baked French Onion Soup Casserole recipe for your next fall dinner:
1. It's easy to make: This recipe is simpler than traditional French onion soup recipes, with minimal prep required. You can easily whip this up for a cozy night in or when hosting friends and family.
2. It's deliciously decadent: The combination of caramelized onions, savory broth, and crusty French bread makes for a rich and flavorful dish that will warm you from the inside out.
3. It's a crowd-pleaser: Whether you're serving a small gathering or a larger group, this casserole is sure to impress. The layers of flavors and textures will leave everyone coming back for more.
4. It's perfect for fall: As the weather starts to cool down, there's nothing better than a hearty and comforting dish like this Baked French Onion Soup Casserole. It's the ultimate autumn comfort food.
5. It's a one-dish wonder: With this recipe, you get all the flavors of traditional French onion soup baked into a convenient casserole. It's a great way to enjoy your favorite soup in a new and easy-to-serve format.
So go ahead and give our Baked French Onion Soup Casserole a try - we promise it will become a new fall favorite for you and your loved ones.
Serves6
Preparation Time30 min
Cooking Time55 min
Ingredients
- 2 tablespoon unsalted butter
- 3 large yellow onions, thinly sliced
- 1 teaspoon sugar
- 1 cup chicken broth
- 1 cup beef broth
- 1 teaspoon chopped fresh thyme
- 1 teaspoon Dijon mustard
- 1 teaspoon kosher salt
- 1 teaspoon freshly ground black pepper
- 1 baguette, sliced 1/2 inch thick (24 slices)
- 2 cup shredded Gruyère cheese
- Fresh thyme, for garnish
Instructions:
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Preheat the oven to 350°F and lightly coat a 9 x 13-inch baking dish with cooking spray. Line a baking sheet with parchment paper.
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In a large saucepan, melt the butter over medium heat. Add the onions and cook, stirring occasionally, until the onions are soft and golden. Halfway through the cooking, around 2 minutes, add the sugar to help the onions caramelize. When the onions are done, add the chicken and beef broths, thyme, mustard, salt, and pepper. Simmer for 5 to 10 minutes.
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Place the bread slices on the parchment-lined baking sheet and toast 2 to 3 minutes on each side.
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Place half of the bread slices in the baking dish, overlapping slightly.
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Layer half of the onion mixture on top of the bread slices. Top with remaining bread slices, then the remaining onion mixture. Cover with the cheese. Cover with foil and bake until hot and bubbling, 30 to 35 minutes. Garnish with fresh thyme and serve.