Slow Cooker French Onion Soup

My family is a huge french onion soup fan! Almost every where we go- out to eat, we generally want to find out if they make this soup. We tease each other who is going to eat the cheese off the soup bowl if we are sharing. We decided enough is enough. We need to make this ourselves. We also have a very busy lifestyle so it needed to be something we could leave and come home to nearly ready.

Oooey- gooey goodness of melted cheese and bread in our soup bowl is heavenly!


This makes a large batch of soup, enough for 2 1/2 meals for our family of 4.  It can easily be cut in half.


3 large sweet onions, sliced up to your preferred thickness
3 Tbsp butter (you can use margarine if you have on hand)
3 Tbsp of flour (all-purpose or can use wheat)
3 Tbsp Worcestershire Sauce
1 1/2  tsp of sugar
1 tsp of pepper
2 32-ounce container of beef broth
3-5 beef bullion cubes
French Bread (fresh is best yum!)
Swiss cheese slices

In your slow cooker on high, add your butter to melt. When the butter is melted, throw in your onions and cover.  Cook onions on high for approx 1 hour or until they are nicely caramelized. I do know sometimes your slow cooker may not achieve this. You may caramelize your onions before hand in a skillet if you prefer to speed up this process then add it to the slow cooker.  In a small bowl, mix together your flour, Worcestershire sauce, sugar and pepper.  Mixing well, slowly add in your flour mixture and the broth to your onions. You may then add in you 3-5 beef bullion cubes. Depends on how much of a beefy flavor you would like to achieve.  Mix well. Cover and cook on low for 6-8 hours or on high 3-4 hours.  Stir a few times during cooking if you are home. 🙂

Cut your french bread into desired slices. Place on a foil lined cookie sheet. Place your slices of Swiss on the top.  Toast/heat up in your oven set to 250 degrees for approx 10-15 minutes.

Pour your soup into your bowl and add your ooey-gooey goodness cheesy bread and enjoy!


We cut our bread thick slices. You may opt to cut them thinner and use multiple pieces in your soup.

2 Responses to Slow Cooker French Onion Soup
  1. Heather @ FakeItFrugal
    August 2, 2011 | 9:23 am

    Yummy! Looks really good!

  2. […] Credit to […]

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Both deaf since the age of 3, Chad and Mary Beth enjoy not only raising their little family but photographing together, cooking & crafting as well. Living in Central Florida with their ... Read More About Us »