Is French Onion Soup Vegetarian, Vegan & Gluten Free? + Recipe

What is french onion soup made of? Is French Onion Soup vegetarian? Let’s find out. In this article we will cover the french onion soup ingredients and see if it is suitable for vegetarians or vegans?

French onion soups have been popular at least as far back as Roman times. Throughout history, they were seen as food for poor people, as onions were plentiful and easy to grow.

The modern version of this soup originates in Paris, France in the 18th century, made from beef broth, and caramelized onions.[1]

What Is French Onion Soup Made of?

French onion soup, or soupe à l’oignon gratinée, is a soup usually based on meat stock and onions, and often served with a larger piece of bread covered with cheese floating on top.

It is traditionally topped with Gruyère, but other cheeses can be used. The recipe calls for Parmesan, provolone, and Swiss. Other popular choices include Fontina and mozzarella.

The soup is topped with bread and cheese, then gratinéed to rich, gooey perfection. It may be served as a meal in itself or as a first course.

Is French Onion Soup Vegetarian?

Is French Onion Soup Vegetarian? No. French Onion Soup is not vegetarian. Traditionally, french onion soup is meat-based(uses a base of beef stock) which makes it unsuitable for both vegetarians and vegans.

But, like many food products, this soup can be vegan.

You can use a vegan mozzarella cheese made of raw cashews, tapioca starch, nutritional yeast, non-dairy milk, lemon Juice, garlic powder and salt.

And of course onions, along with garlic, shallots, scallions and leeks.

Is French Onion Soup Gluten Free?

French onion soup is gluten free. It does not contain any trace of wheat.

Which makes it suitable for people on a gluten free diet.

Is French Onion Soup Halal?

Yes. French onion soup is halal.

It does not contain any pork or alcohol products and therefore it’s suitable for muslim people.

The store bought soup may contain other ingredients, so always double check the product label before buying.


Best Vegetarian French Onion Soup Recipe

This recipe is for a classic French Onion Soup that is adapted for vegetarians. It’s a comforting and satisfying dish that is perfect for a cold winter day.


French onion soup is not vegan. The main ingredient in this soup is beef broth, which makes it unsuitable for both vegans and vegetarians.


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As a result, we recommend that you always read the label carefully before using or consuming any products or foods.

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