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Savory French Onion Casserole Recipe

Savory French Onion Casserole Recipe
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★★★★★

4.7 from 27 reviews

This Savory French Onion Casserole is a comforting and flavorful dish that layers caramelized onions in a rich broth-based sauce with crispy croutons and melted cheese topping. Perfect for a cozy dinner or side, it combines sweet onions, savory beef broth, and a cheesy crust for an irresistible twist on classic French onion flavors.

Ingredients

Scale

For the Casserole

  • 3 tablespoons butter (can substitute with olive oil for a dairy-free option)
  • 3 cups yellow onions, sliced
  • 2 tablespoons all-purpose flour
  • 1 dash pepper (adjust based on taste)
  • 2 cups beef broth (substitute with vegetable broth for vegetarian option)
  • 1/2 cup sherry (or more beef broth if unavailable)
  • 2 cups salad croutons (homemade or store-bought)
  • 1 cup Swiss cheese, shredded (can use mozzarella as alternative)
  • 1/2 cup Parmesan cheese, grated (can use nutritional yeast for vegan option)

Instructions

  1. Sauté Onions: In a large ovenproof skillet, melt 3 tablespoons of butter over medium heat. Add the sliced onions and sauté until they are tender and golden brown, which should take about 10-12 minutes. This step develops the rich, sweet flavor essential to the casserole.
  2. Add Flour and Seasoning: Stir in 2 tablespoons of all-purpose flour and add a dash of pepper to taste. Mix well to coat the onions thoroughly, which will help thicken the sauce later.
  3. Incorporate Liquids: Gradually pour in 2 cups of beef broth and 1/2 cup of sherry. Bring the mixture to a boil, then reduce heat and cook until it thickens, about 2 minutes. This creates a savory base for the casserole.
  4. Prepare Croutons: In a microwave-safe bowl, melt the remaining butter and toss in 2 cups of salad croutons until they are well-coated. This ensures the croutons will add a crispy and flavorful texture on top.
  5. Assemble and Top: Evenly distribute the butter-coated croutons over the onion mixture in the skillet. Then sprinkle 1 cup of shredded Swiss cheese and 1/2 cup of grated Parmesan cheese evenly on top.
  6. Broil the Casserole: Place the skillet under a broiler for 1-2 minutes until the cheese is melted and golden brown. Watch closely to prevent burning, then remove and serve warm.

Notes

  • For a dairy-free version, substitute butter with olive oil and use vegan cheese alternatives.
  • Vegetarian option: replace beef broth with vegetable broth and omit the sherry or use extra broth if preferred.
  • Make homemade croutons by toasting cubed bread with butter or olive oil and seasoning.
  • Adjust the amount of pepper and seasoning based on your preference.
  • Serve this casserole as a side dish with roasted meats or as a meatless main course paired with a fresh salad.
  • Be careful while broiling the cheese as it melts quickly and can burn if unattended.

Nutrition

Keywords: French onion casserole, savory casserole, onion recipes, easy comfort food, cheesy casserole, vegetarian casserole

Find it online: https://tastemadebyclara.com/savory-french-onion-casserole-recipe/