French Onion Green Bean Casserole
French onion green bean casserole is rich and savory with green beans baked in a onion sauce and topped with Gruyère and crisp croutons.
Ingredients
- 2 pounds fresh green beans
- ¼ cup butter
- 4 medium onions, sliced
- 3 garlic cloves, minced
- ¼ cup flour
- ½ teaspoon salt
- ¼ teaspoon pepper
- 1 ½ cups chicken broth
- ½ cup heavy cream
- 1 ½ cups gruyere, shredded
- 1 cup croutons
Instructions
- Preheat the oven to 375°F and grease a 9×13 baking dish.
- Bring a large pot of salted water to a boil. Add the green beans and cook for 4 to 5 minutes, just until bright green and slightly tender. Drain and set aside.
- In a large skillet, melt the butter over medium heat. Add the sliced onions and cook, stirring often, until softened and golden, about 20 to 25 minutes.
- Add the garlic and cook for about 30 seconds, just until fragrant.
- Sprinkle in the flour, salt, and pepper, then stir well to coat the onions.
- Slowly pour in the chicken broth and heavy cream, stirring until smooth. Simmer for 2 to 3 minutes, until slightly thickened.
- Add the green beans and half of the Gruyère, then stir until combined.
- Transfer the mixture to the prepared baking dish and top with the remaining Gruyère and the croutons.
- Bake for 20 to 25 minutes, until hot and bubbly and the topping is lightly golden.
Nutrition
Notes
- Do not overcook the green beans: Blanching them just until bright green keeps them tender crisp after baking.
- Take your time with the onions: Cook them until soft and golden so the casserole has real French onion flavor.
- Stir well after adding flour: Coating the onions evenly helps the sauce thicken smoothly.
- Add broth slowly: Pouring in the broth gradually prevents lumps and makes the sauce silky.
- Add croutons at the end if needed: If your oven runs hot, add the croutons during the last 10 minutes so they do not get too dark.
DID YOU MAKE THIS RECIPE?
Please leave a comment and star rating on this post!