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Vegetarian French Onion Soup Recipe

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This vegetarian French onion soup recipe is sweet, flavorful, & elegant. Loaded with soft yellow onions, good white wine, French herbs, and vegetable stock. 

Top this soup with a thick slice of homemade sourdough bread and heaps of gruyere cheese for a gourmet meal ready in no time. Serve with a side salad or main course to make this a complete dinner everyone at the table will love.

slow cooker french onion soup recipe caramelized onion soup vegetarian dinner party appetizers fancy soup to serve guests.

This post and recipe is sponsored by Wolf Gourmet. They kindly sent me their Multi-Function Cooker and I created this recipe using this wonderful tool!  

If you’re looking for a gourmet appetizer for your next dinner party or gathering, this vegetarian French onion soup is the perfect starter. It’s salty, sweet, gooey, cheesy, and couldn’t be easier to make in the Wolf Gourmet Multi-Function Cooker.  This appliance does it all: sautés the onions to a deep caramelized brown, then slow cooks the rest of the soup until you’re ready to serve.

I love how hands-off this recipe is, the multi-cooker does all the work!  This French Onion soup is the perfect meal to serve to guests, as you can make it hours before and let the flavors slow-cook until you’re ready to serve. Because the chef deserves to enjoy the dinner party too.

This Vegetarian French Onion Soup Recipe Is:

  • Bright
  • Elegant
  • Sweet
  • Herby
  • Decadent
  • Simple to Make
  • A Great Entertaining Recipe for Guests or for Holidays
  • Vegetarian, Meat-Free, and Can Easily by Made Gluten Free or Vegan

slow cooker french onion soup with caramelized onions and white wine butter and gruyere cheese in the crock pot from wolf gourmet.

Make Ahead French Onion Soup in the Appliance that Does it All

This vegetarian French onion soup is unbelievably easy to make ahead of time for your next date night, dinner party, or just a dinner gathering with friends. Using the Wolf Gourmet Multi-Function Cooker couldn’t be easier: you can brown the onions on the sauté mode, then switch to the slow cooker to gently simmer the onions for hours.  The meal can be ready anytime you or your guests are!

This multi-cooker has so many amazing settings in one appliance. It can sauté and sear, steam rice, sous vide, slow cook, and you can even program your cooker to run more than one setting throughout the day.  My favorite feature is the Meal Timer mode: you tell the appliance what time you want the recipe ready, and it will adjust the heat to get it finished!  Now that’s one smart cooker!

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What’s In This Meatless French Onion Soup Recipe?

  • Butter – to sauté the onions in.
  • Onions – I used large sweet Vidalia onions for this. Vidalia onions have a higher sugar content making them a fantastic choice to caramelize.
  • White Wine – use a really good wine that you would drink or serve to guests. I used a pinot grigio for this recipe and it turned out great, but a chardonnay would also bring some amazing flavor to this soup.
  • Garlic – for added flavor and depth.
  • Herbs de Provence – a beautiful French spice blend of thyme, marjoram, savory, and lavender. It’s fantastic in soups, stews, and on roasted potatoes.
  • Vegetable Stock – make your own or buy one lower in sodium so you can control the salt content of the soup.
  • Salt and Pepper – to taste, your soup may not need either depending on the vegetable stock you use.
  • Bread – I like a thick sourdough slice for the crouton.
  • Gruyere Cheese – a sharp classic addition to French onion soup. If you can’t find gruyere you can add fresh mozzarella instead. 

vegetarian french onion soup recipe wolf gourmet recipes in the mutli-function cooker from wolf gourmet soup recipes with onions vegetarian.

Easy Fancy Dinner Party Appetizers to Impress

Impress your guests with a bowl of this delicious soup as an appetizer or second course. It’s simple enough to prep on a weeknight, and elegant for company or for a special occasion. Homemade French onion soup couldn’t be easier to caramelize then slow cook in your multi-function cooker. Prep it anytime of day, and set the Meal Timer function so the soup is ready when your guests are!

How Do I Make French Onion Soup?

  1. Set your Wolf Gourmet Multi-Function Cooker to the ‘Sear/Sauté ‘ mode, then select ‘Medium’. Add the butter and the sliced onions, and sauté for 40 to 45 minutes until the onions have caramelized to a deep brown. Sauté with the lid removed, stirring the onions occasionally.
  2. Once the onions have caramelized, add the wine directly into the pan, and stir with a wooden spoon, scraping any brown bits off the bottom of the pan.  Add the garlic, Herbs de Provence, and vegetable stock. Cover the pot, and switch the multi-cooker to Manual Mode. Select ‘Medium’ again, and slow cook for 2-3 hours until onions are soft and falling apart in the soup broth.  Taste, and add salt and pepper if desired.
  3. Just before serving, slice your bread and place a heaping pinch of gruyere cheese on top. Place the bread and cheese under the broiler for 2-3 minutes until the cheese begins to brown and bubble. 
  4. Serve the hot soup with a cheese toast on top of the soup, or on a place next to the soup, and garnish with fresh herbs.

gruyere toast with french onion soup vegetarian recipes fancy dinner party or holiday meals soups for the holidays meatless and plant based.

What Goes with French Onion Soup?

Here are more great vegetarian sides to enjoy with a cozy bowl of French onion!

Lyonnaise Salad – a classic French salad with a poached egg and bright mustardy vinaigrette.

Kale & Mushroom Gratin – also can be made in the Wolf Gourmet Multi-Cooker.

Crispy Melting Potatoes – a crowd-pleaser!

Creamy Garlic Baked Carrots – a family recipe we make for every holiday.

 

As always, if you make this vegetarian French Onion soup recipe be sure to leave me a comment, rate this recipe, and tag me @theherbeevore on Instagram so I can feature you.  I love seeing all your photos of my recipe recreations!

Let’s keep in touch – make sure to sign up for my newsletter to get fresh recipes weekly. And don’t forget to follow over on Pinterest, Instagram , & Twitter– I’d love to connect with you there! 

slow cooker french onion soup recipe caramelized onion soup vegetarian dinner party appetizers fancy soup to serve guests.

Vegetarian French Onion Soup

This Vegetarian French Onion Soup recipe is sweet, flavorful, & decadent. Loaded with soft yellow onions, good white wine, French herbs, and vegetable stock.  Top this soup with a thick slice of homemade sourdough bread and heaps of gruyere cheese for a gourmet meal ready in no time. Serve with a side salad or main course to make this a complete dinner.
5 from 3 votes
Prep Time 45 mins
Cook Time 2 hrs
Total Time 2 hrs 45 mins
Course Appetizer, Soup, Special Occasion
Cuisine French, Soup
Servings 4
Calories 330 kcal

Ingredients
  

Instructions
 

  • Set your Wolf Gourmet Multi-Function Cooker to the 'Sear/Sauté ' mode, then select 'Medium'. Add the butter and the sliced onions, and sauté for 30 to 45 minutes until the onions have caramelized to a deep brown. Sauté with the lid removed, and stir occasionally.
  • Once the onions have caramelized, add the wine directly into the pan, and stir with a wooden spoon, scraping and brown bits off the bottom of the pan.  Add the garlic, Herbs de Provence, and vegetable stock. Cover the pot, and switch the multi-cooker to Manual Mode. Select 'Medium' again, and slow cook for 2-3 hours until onions are soft and falling apart in the soup broth.  Taste, and add salt and pepper if desired.
  • Just before serving, slice your bread and place a heaping pinch of gruyere cheese on top. Place the bread and cheese under the broiler for 2-3 minutes until the cheese begins to brown and bubble.
  • Serve the hot soup with a cheese toast on top of the soup, or on a place next to the soup, and garnish with herbs.

Nutrition

Calories: 330kcalCarbohydrates: 35gProtein: 9gFat: 13gSaturated Fat: 5gPolyunsaturated Fat: 1gMonounsaturated Fat: 7gCholesterol: 20mgSodium: 157mgPotassium: 582mgFiber: 6gSugar: 16gVitamin A: 226IUVitamin C: 26mgCalcium: 287mgIron: 2mg
Keyword caramelize onions slow cooker, caramelized onion soup recipe, french onion soup slow cooker, slow cooked onion soup, slow cooker french onion soup, vegetarian french onion soup, wolf gourmet recipes
Did You Make This Recipe?Tag me @theherbeevore in your photo on Instagram and I'll feature you in my stories!

This post may contain affiliate links. As an Amazon Associate I may earn from qualifying purchases, at no additional cost to you. Thank you for supporting the brands that support The Herbeevore and our beehives!

Posted in CrockPot/Slow Cooker, For Entertaining, French, Make Ahead, Nut Free, Soups, The Herbeevore Recipes, Vegan Recipes, Vegetarian Recipes

3 Comments

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