How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for French Onion Fondue?

You need 11 ingredients. The key ingredients include: 1/4 cup unsalted butter, 5 lbs sweet onions, thinly sliced (about 6 onions), 1/4 cup dry sherry, 1/4 cup sherry wine vinegar, and more.

Is French Onion Fondue suitable as soups & stews?

Yes, French Onion Fondue falls under the Soups & Stews category and is a great choice for this type of meal.

How do I store leftover French Onion Fondue?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

French Onion Fondue Recipe

Name: French Onion Fondue
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1/4 cup unsalted butter; 5 lbs sweet onions, thinly sliced (about 6 onions); 1/4 cup dry sherry; 1/4 cup sherry wine vinegar; 1/4 cup Worcestershire sauce; 2 teaspoons thyme leaves; salt & freshly ground black pepper; 1 1/2 cups chicken broth, preferably homemade; 2 cups coarsely grated gruyere cheese; 1 teaspoon finely chopped flat leaf parsley; 1 baguette, sliced and lightly toasted

Try this homemade French Onion Fondue recipe the whole family will love. Made with unsalted butter, sweet onions, sherry and sherry wine vinegar. Easy s…

This French Onion Fondue relies on simple, everyday ingredients such as unsalted butter, dry sherry, sherry wine vinegar and worcestershire sauce. It comes together quickly and makes 4 servings, at about 722 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Soups & Stews

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

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French Onion Fondue

Tips for the best results

Variations & substitutions

My Personal Notes

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