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 Onion Soup Gratine ?

You need 13 ingredients. The key ingredients include: 8 Large yellow onions, sliced, 4 T. butter, 1 T olive oil, 1 t salt, and more.

Is Onion Soup Gratine suitable as soups & stews?

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

How do I store leftover Onion Soup Gratine ?

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

Onion Soup Gratine Recipe

Name: Onion Soup Gratine
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 8 Large yellow onions, sliced; 4 T. butter; 1 T olive oil; 1 t salt; 1 t sugar; 1/4 cup sifted all-purpose flour; 4 cups chicken stock; 4 cups beef stock; 1/4 dry Sauterne (or dry white wine); 1 1/2 T brandy; Salt and freshly gournd pepper to taste; 6 to 8 will-toasted bread slices; Sliced Gruyere or Emmenthaler cheese

Warm up with this hearty Onion Soup Gratine recipe. Made with yellow onions, butter, olive oil and salt. Easy step-by-step instructions included.

This Onion Soup Gratine relies on simple, everyday ingredients such as large yellow onions, sliced, t. butter, t olive oil and t salt. It comes together quickly and makes 4 servings, at about 1552 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

1552

kcal

Calories

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.
Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

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

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Onion Soup Gratine

Tips for the best results

Variations & substitutions

My Personal Notes

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