Irresistible Creamy French Onion Casserole Recipe to Savor
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Author:sophiebennet
Total Time:1 hour
Yield:6 servings 1x
Description
Savor this irresistible creamy French onion casserole recipe Perfect blend of flavors for a comfort dish that everyone will love Enjoy every bite
Ingredients
Scale
3 large yellow onions, thinly sliced
2 tablespoons olive oil
1 tablespoon butter
2 cloves garlic, minced
1 teaspoon fresh thyme, chopped (or ½ teaspoon dried thyme)
½ cup dry white wine (optional; can substitute with vegetable broth)
2 cups heavy cream
1 cup beef broth (or vegetable broth for vegetarian version)
1 teaspoon salt
½ teaspoon black pepper
2 cups croutons or stale bread cubes
1 ½ cups Swiss cheese, grated
½ cup Parmesan cheese, grated
Instructions
In a large skillet, heat the olive oil and butter over medium heat. Add the sliced onions and a pinch of salt, stirring occasionally. Cook for about 20-25 minutes until the onions are a rich, golden brown.
Once the onions are caramelized, stir in the minced garlic and fresh thyme, cooking for an additional 2-3 minutes until fragrant.
Pour the white wine into the skillet to deglaze the pan, scraping up any browned bits from the bottom. Let it simmer for about 2 minutes until slightly reduced.
Stir in the heavy cream and beef broth, along with the salt and pepper. Bring this mixture to a gentle simmer, allowing it to thicken slightly. Remove from heat.
In a large mixing bowl, combine the croutons and half of the grated Swiss cheese. Pour the creamy onion mixture over the top, gently mixing until all the croutons are well coated.
Grease a 9×13 inch baking dish and pour in the casserole mixture. Spread it evenly across the dish. Top with the remaining Swiss cheese and the Parmesan cheese.
Bake in a preheated oven at 350°F (175°C) for 30-35 minutes or until the cheese is bubbly and golden brown.
