Cooking Time:6-7 hours
Ingredients1/2 c. butter
6 Vidalia onions, thinly sliced
1 tsp. sugar
2 T. flour
5 c. water
½ c. red wine
1 T. Worcestershire sauce
2 cloves garlic, minced
2 bay leaves
Salt & Pepper, to taste
42 oz. beef broth
1 Large French baguette
8 slices Swiss cheese
What an indulgence it is to have a really tasty Slow Cooker Fancy French Onion Soup. Your guests or family will think you slaved away in the kitchen. Shh…we won’t tell…
- Place butter in a large slow cooker and turn to High setting.
- Once butter is melted, stir in sugar.
- Place onions in butter, toss to coat; cover and cook on HIGH 3-4 hours, or until well caramelized. (No need to do this step if you have made my caramelized onions recipe previously).
- Stir in flour until well blended with the onion juices. Add water, red wine, Worcestershire, garlic, bay leaves, salt & pepper to taste, and beef broth.
- Cover and cook on HIGH for 3 hours.
- Cut 8, 1-inch thick slices of bread from loaf. Toast the bread slices using a wide, bagel toaster or in a toaster oven.
- Ladle soup into oven-safe bowls. Place 1 slice of toasted bread on top of the soup in each bowl. Top with a cheese slice.
- Place soup bowls on a baking sheet for easier handling.
- Broil just until cheese is melted and starting to brown.
- BE CAREFUL when handling bowls – they will be very HOT when you remove them from the oven!!
NOTE: If you have made my Slow Cooker Caramelized Onions previously, you can use these to make this soup. Just eliminate the onions and butter in this recipe, and follow the directions as stated.
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needs WAY more spices added, I used beef bouillon cubes like 3-4 plus basil, garlic salt…so good
[…] Slow Cooker Fancy French Onion Soup […]
I think it’s so rude when someone posts a recipe and people have to say ‘ you NEED THIS’. Obviously, any recipe can be tweaked to suit your personal preferences.
I can’t wait to try this! I never thought of making French onion soup in the crock! Thank you for sharing!
I agree! Drives me crazy!!
Totally agree. Many of us adjust spices to our family’s taste. No bullion here…..lol.
Can you leave out the wine I don’t care for it in any recipes that call for it
Hi Sherry, you can, I would add enough water or broth to equal the 1/2 c. wine, as the recipe will need the liquid.. Hope this helps, and Happy Crocking!
I live in a very remote part of Northern California. The one store here doesn’t have Vidalia onions. Can I use yellow?
Lynn you certainly can… The Vidalia is just a little sweeter but the yellow will also give you a delicious flavor. Happy Crocking!
Is it possible to do this whole recipe on low? Away at work all day and hoping to make it a weeknight meal 🙂 Looks delicious!
Hayley, you certainly can attempt to make it that way, but with the steps in the recipe, I am not sure it will work. If you decide to make it this way, please post back and let us all know how it turned out! Happy Crocking!
Hi! I’m trying this recipe because it made sense to me and looks very good. But, here’s my only suggestion… Everything is pretty clear w/regard to amounts “42 oz.” beef stock etc. I’m an experienced cook so I can “guesstimate” but the onions should be converted e.g. “6 Vidalia onions” = 6 C or “X” oz. etc. That way, we can truly get the taste as you intended. As you know, they can range in size. I can’t always get Vidalia’s here in Utah either but I can get Walla Walla sweets which suffice but they can be huge. Thanks!… Read more »
Beef Boullion cubes is definitely a must for this 5-6
Awesome! This is a winner. The only change I made was to use smoked Gouda. Always use Swiss – figured I’d kick it up a bit. Delish!! Thank you!
I tried this recipe yesterday. Unfortunately the 3 to 4 hours for browning the onions was not enough. They didn’t soften nor colour. Although I followed the directions, it didn’t turn out the way it should. Because I ran out of time, so no more time to add extra hours for caramelizing (i am sure I needed an extra 4 hours to brown the onions), that is why i continued with the next steps. The taste of the soup was good, but the onions hadn’t softened while boiling in the broth. Here in The Netherlands I couldn’t find Vidalia onions… Read more »
Edith it sounds like your slow cooker may not be crocking hot enough to caramelize the onions. When you make it the next time, you may want to caramelize the onions on the stove prior to making the soup, as I solution. Also, I am not sure, but it could be the onions too. Some onions do not soften like others. I am not familiar with the sweet pink onion, so I would ask others in your area what onion they feel is the best cooking onion. Thanks for posting, and hope when you make it again it will be… Read more »
Is swiss cheese usually used? What other cheese can I use – do not like swiss!
Make this recipe your own Lucy! If you like Provolone or Mozzarella or any cheese of your liking! I’m sure if you like the cheese, you will like the soup! Enjoy!
The REAL cheese used for French onion is Guryere! Magnifique!!
Hello! This looks wonderful but I am a vegetarian could i sub. the beef broth with veg. broth?
Absolutely Courtney! You can do that with any of my recipes to convert them to vegetarian. Enjoy and happy crocking!
Made this recipe today. The recipe def needed some more seasoning so since we didn’t have any beef cubes (forgot to buy them at the store yesterday), we became crafty & put the seasoning in from dry onion soup mix. So, we’ll see how that turns out!
I need to know if I can buy any of your BOOKS in a book store???
Hi Carol, I am currently working on my first hard cover book, and will be sure to post when it is in print! Thank you so much for your interest and support! 🙂
Can another type of broth be used other than beef? I am allergic to caramel coloring and that is usually in beef broth. I saw that someone asked about vegetarian broth…would chicken work too? Thanks! I love your recipes! 🙂
Why not make your own beef broth? I make it ahead and keep quarts in the freezer. If it’s not a self-defrosting freezer, they will keep for a couple of years.
Can the flour be omitted? Or us there a gluten free substitute? I gave up gluten and am still learning…
Mand there are gluten free flours that you can purchase. Check your local grocer to see if he can direct you to these flours. Hope this helps!
what size of crock pot?
I use my 5 quart slow cooker when I make this recipe. 🙂
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