Sometimes you want a simple recipe, and this easy vegetarian French Onion soup recipe has only six ingredients and is quick, easy, and delicious. A vegetable soup that you make in a wink if you have an unexpected visitor. The vegetarian version of the classic French onion soup is the ultimate comfort food.
Prep Time 5 minutesmins
Cook Time 15 minutesmins
Total Time 20 minutesmins
Course Lunch, Soup
Cuisine Other
Servings 4persons
Calories 73kcal
Equipment
soup pot
Chef's knife
Conventional oven, with grill Optional
Ingredients
1tablespoon butter
3onionssliced in rings
1clove garlicchopped finely
4cupsvegetable stock
1teaspoon Worcestershire sauce* worcestershiresauce contains fish. Use vegan sauce for a vegetarian version. Look in the tips for a replacement.
1teaspoon dried thyme
optional
1baguette
2ouncesGruyère cheesegrated
Ingredients you need per step are listed below the step in Italic
Instructions
Easy onion soup
Heat butter in a pan on low heat.
1 tablespoon butter
Bake the onion at medium heat until they are translucent in 3 minutes.
3 onions
Add the garlic and stir-fry for 30 seconds.
1 clove garlic
Pour the stock and Worcestershire sauce with the onions. Stir so the brown bits will come loose from the bottom and give even more flavor.
Bring to the boil and let it simmer for 15 minutes.
Taste, and if necessary, add some salt and pepper to the taste.
Grated Cheese Baguettes
Preheat the broiler.
Cut the baguette into thin slices.
1 baguette
Top the baguette slices with grated cheese.
2 ounces Gruyère cheese
Pour the soup into ovenproof bowls and top with the baguette slices.
Let the cheese melt for about 3 minutes under the broiler.
NOTES
1. - Vegetable brothUse homemade vegetable stock or mushroom broth, or prepare the stock from store-bought cubes (and add 4 cups of water). This will add a lot of flavor to the soup. However, keep in mind that every vegetable broth is different. So make sure to taste the soup just before serving and add black pepper and a pinch of salt when necessary.2. - OnionsTraditionally, a Yellow onion is used. This onion is mild and becomes sweet when caramelized. The white onion is a bit milder compared to the yellow ones. Shallots are tangy and give a bit of spice. Red onions give a deeper flavor but, when baked, are still sweet. I opted for the yellow onions, but you can use an onion mixture to get the best of everyone.3. - Gruyère cheeseA Swiss cheese, a bit sweet and salty. And this gooey cheese is ideal for melting and using for a gratin.4. - Worcestershire sauceWorcestershire sauce contains fish. Vegan Worcestershire sauce doesn't, so use it for a genuinely vegetarian recipe. Of course, you could make your substitute, and here you can find an easy recipe.5. - Vegan versionUse vegan cheese and butter (or olive oil) instead of Gruyère and butter. Replace the Worcestershire sauce with one teaspoon of soy sauce for a delicious vegan french onion soup.6. - Even more flavorAdd four tablespoons of dry white wine to the stock.7. - When topping with toasted breadMake sure you use oven-safe bowls. Put them on a baking tray so that drippings will be caught on the tray.8. - Tip Toast extra baguette slices. When using a baguette, toast some extra slices in the oven. I know you should only put two to three baguette slices in each cup, but I find them so delicious that three is not enough. So I bake some more and serve them as a side, to dip in the onion soup.9. - StorageCool the soup quickly before storing it. Don't add the topping; store it apart (or make it fresh).
Refrigerator - store in an airtight container for up to two days.
Freezer - Store the soup (or leftovers) in an airtight container for up to 3 months.
Reheat - Reheat the soup on the stove, and ladle the soup into soup bowls. If you want to add the baguette topping, use heat-proof soup bowls. Add the baguette and cheese and grill.
9. - Nutritional ValuesThe nutritional values shown are the onion soup without the baguette and cheese.