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French Onion Soup is a cinch to make with Slow Cooker Caramlized Onions.
***If you love EASY and DELICIOUS meals that you can make for your family in your slow cooker, please join me over on Instgram where I share ALL slow cooker recipes!  Hope to see you there!  Find me on Instagram at @slowcookerrecipelove ***
The very first thing I ate after arriving in Paris last Spring was French Onion Soup. Of course in Paris it is not called French Onion Soup – it is called Soupe à l’oignon. No need for the French part because you’re in France!
Whenever I go to a restaurant that has French Onion Soup on the menu I order it. I love it but I had never made it at home. I had decided it was just too hard to make at home. I am happy to report that I was wrong!!
Remember those Slow Cooker Caramelized Onions I shared a few weeks ago? Well, they make a perfect onion soup and make it so easy.
I used a cup of caramelized onions that I had put away in the freezer. You could use more but I don’t like my soup too oniony.
I had a delicious bowl of french onion soup in no time at all!! French Onion soup is made with a base of beef broth. I actually used a combination of beef and chicken and then it is topped with some toasted baguette and covered in cheese!! Place it under the broiler and you have Soupe à l’oignon. Translation: delicious!
Here’s how I did it. I made my broth and added the caramelized onions. I sliced a baguette and then brushed the bread with a little olive oil and placed it under the broiler to toast.
I then placed the bread on top of the soup and covered it with a couple of slices of Swiss cheese. Then covered that with mozzarella cheese! My favorite part of French onion soup is the cheesy part on top. Lots of ooey, gooey cheese!
I then placed the bowl onto a cookie sheet and placed it under the broiler. Watch it carefully and pull it out when the cheese has melted and gotten bubbly and golden brown on top.
Then grab a spoon and dig it!! Just close your eyes and imagine yourself sitting at a little sidewalk cafe in Paris! Oh la la!!
From some other tastes from France try these:
French Cream Puffs and Eclairs
***If you love EASY and DELICIOUS meals that you can make for your family in your slow cooker, please join me over on Instgram where I share ALL slow cooker recipes!  Hope to see you there!  Find me on Instagram at @slowcookerrecipelove ***
French Onion Soup with Slow Cooker Caramelized Onions
Ingredients
- 1 C caramelized onions
- 32 oz. chicken broth
- 32 oz. beef broth
- 1 Tbsp Worcestershire sauce
- 1 tsp parsley
- 1/4 tsp thyme
- 1 bay leaf
- 1 Tbsp balsamic vinegar
- salt and pepper to taste
- 4 slices of French bread/baguette
- olive oil
- 8 slices of Swiss cheese
- 1/2 C shredded Mozzarella cheese
Instructions
- Mix together broths, Worcestershire sauce, seasonings.
- Add in caramelized onions
- Simmer for 20 minutes.
- Remove bay leaf and reduce heat.
- Add in vinegar and season as necessary with salt and pepper.
- Cover and keep on low heat until ready to serve.
- Slice french bread,
- Brush with olive oil and place on cookie sheet.
- Place under broiler until golden brown
- Place slice of bread on top of bowl of soup.
- Cover with 2 slices of Swiss cheese
- Add 1/8 C of shredded Mozzarella Cheese
- Place under broiler until cheese is melted, bubbly and beginning to brown.
Tips & Notes:
Nutrition Facts:
Recipe adapted from allrecipes.com
Melissa says
I love French Onion Soup!! This was to die for! Thank you!
Leigh Anne says
I am a huge fan too! So glad you enjoyed the recipe.
Emmy says
Thanks, it turned out good! I wish i had seen the carmalized onion directions first though. Think mine werr half fried. Lol
Tara says
My hubby loves French Onion Soup. I’ll have to give it a try.
Leigh Anne says
Tara, Hope your hubby enjoys it!
Sarah says
Yum! What kind of onions did you use? Yellow or white or sweet?
Leigh Anne says
You can use either yellow or white. Don’t really need sweet because the onions sweeten up as they cook for so long. I think I used yellow this time because that is what I had.
Kristy says
Hi there, I came across your blog on Pinterest & just wanted to let you know that your tutorials page appears to be down. It reads, “[catlist id=727 catlist thumbnail=yes numberposts=20]”
Leigh Anne says
Thanks for the heads up!
Emily says
I am the only lover of this soup at my house so I am excited to make this when my brother comes to visit. Looks so yummy!
Leigh Anne says
Or we could make it while I am there! I love it!
Mique says
Hello! I’m drooling!! YUMMMMM. I want this right now.
Leigh Anne says
This soup is totally drool worthy!! So easy and yummy!
Tiffany says
I am not a big onion fan and therefore I’ve never cared for this soup much. My aunt has a great recipe that she got from a hotel she use to work at. Your pictures look great and have me wanting to give it a try, again!
Leigh Anne says
Tiffany, I love the flavor the onions give it but I don’t like too much onion in the soup. I really love the cheese and bread the best! Hope you’ll try it
Vanessa says
I love french onion soup but for some reason I’ve never made it. I make everything else. This looks so good!
Leigh Anne says
Vanessa, Hope you’ll give it a try. With the Slow Cooker onions it is so easy to do!