Amazing Slow Cooker French Onion Soup for #SundaySupper

Amazing Slow Cooker French Onion Soup Collage | Hot Momma's Kitchen Chaos

Do you love your Slow Cooker?  I adore mine, all four of them.  I have one slow cooker with two crocks of different sizes.  I love this one because I can use the same cooking base no matter what the size dish I’m preparing.  I have a 6 qt. oval slow cooker which I like because of its oval shape (better for roasts and such), because of its removable crock, and because of its locking lid.  I also have two small crocks which are great for dips, chocolate/candy melting, etc.  It’s nice to have two in case I’m making more than one dip, more than one candy flavor, etc., though technically one of them belongs to my 8 year old daughter who got it for Christmas last year to dip cake pops in.

I use my Slow Cooker frequently.  It’s great in the summer – saves turning on the stove.  Awesome in the fall or winter – the most delicious, comforting soups (Slow Cooker Pasta e Fagioli e Zucchini) and meals (Slow Cooker Apricot Jalapeño Pork Chops) are made in it.  Super for a large party or meal (Slow Cooker Green Bean Casserole) – part of the meal is made in the Slow Cooker so that the oven is free for other things.  Its wonderful for snacks (Slow Cooker party mixes – Original, BBQ, Cheesy and Caramel).  Its a breeze to make dips or sauces (Easy Slow Cooker Pasta Sauce),  It makes yummy breakfast/brunch (Slow Cooker Overnight Blueberry French Toast Casserole) and dessert (Slow Cooker Pumpkin Spice Apple Crisp).  You can make bread in the Slow cooker or I even use my Slow Cooker Crocks to bake bread in the oven (Seeded Artisan Bread).  So when it was announced that we would be sharing our favorite Slow Cooker recipes this week for #SundaySupper, I was one of the first ones on the band wagon.  Thanks so much to Heather of Hezzi-D’s Books and Cooks and Christie of A Kitchen Hoor’s Adventures for hosting this week, be sure to check out their yummy Slow Cooker recipes below, along with any of the other delicious ones that sound amazing to you.

Have you ever caramelized onions?  If you have, you know it’s a time consuming, effort intence project.  Try doing it for a crowd and you increase the difficulty ten fold.  Because the star of any good French Onion Soup is delicious, sweet, deeply caramelized onions, it is not a dish you’ll often see on the family dinner table, one reserved for company, and a time when the host has an abundance of time to prepare.  Enter Amazing Slow Cooker French Onion Soup.  Who knew you could caramelize onions beautifully in the Slow Cooker?  Who knew you could make this delcious dish at home, just as delicious – or better – than what you get at your favorite restaurant?  Now you can thanks to Cook’s Illustrated Slow Cooker Revolution!  This book is the most useful Slow Cooker tool I have ever purchased.  If you love to use your Slow Cooker, I encourage you to check it out.

The unique thing about Cook’s Illustrated books is that they experiment in the Test Kitchen.  Through trial and error they discover new ways to prepare dishes that would otherwise take more time, and/or more effort, or (in the case of my Cook’s Illustrated Make Ahead book) keep the host in the kitchen as guests arrive instead of allowing her to welcome them.  Once the Test Kitchen has perfected a dish, they not only publish the recipe, but they explain why it works.  If any of you are Alton Brown fans like I am, you’ll love this too.  For a recipe developer, like myself, this is so important, because then I know how to utilize these techniques in my own recipes, and I know which things are imperative and which can be changed up according to my own preferences and tastes.

Amazing Slow Cooker French Onion Soup
Serves 8
French Onion Soup made easier in the Slow Cooker.
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Prep Time
30 min
Cook Time
12 hr
Total Time
12 hr 30 min
Prep Time
30 min
Cook Time
12 hr
Total Time
12 hr 30 min
Ingredients
  1. 2 lbs. beef soup bones (if frozen, thaw completely before cooking)
  2. 6 medium yellow onions
  3. 4 Tbsp butter
  4. 1 tsp. salt
  5. pepper
  6. 2 tsp. brown sugar
  7. 1 tsp. minced fresh thyme or 1/2 tsp. dried thyme
  8. 5 Tbsp. flour
  9. 3/4 cup apple butter
  10. 2 Tbsp. red wine vinegar
  11. 1/2 cup beef broth
  12. 1/4 cup soy sauce
  13. 2 cups chicken broth
  14. 2 cups beef broth
  15. 1 large (24 inch) loaf French baguette, sliced into 1/2 inch slices and toasted
  16. 2 cups shredded Swiss (choose your favorite swiss variety)
  17. 6-8 large slices swiss cheese (one for each cup of soup)
Instructions
  1. Microwave beef bones for 8-10 minutes on a plate lined with paper towel, until browned.
  2. Slice onions into thin slices and add to the crock of your slow cooker. Add butter, salt, pepper, brown sugar and thyme to the slow cooker and stir to combine.
  3. In a small bowl whisk together flour, apple butter, red wine vinegar, 1/2 cup beef broth and soy sauce until well combined and smooth.
  4. Pour apple butter mixture over onion mixture in the slow cooker and toss together until well combined.
  5. Nestle beef bones into onions, set the slow cooker to high and walk away for 8 hours.
  6. After 8 hours of cooking, begin checking onions for doneness. Cooking may take up to 12 hours since slow cookers vary, but onions can burn quickly, so check onions every half hour until desired doneness is achieved.
  7. Once onions are done, combine chicken broth and remaining beef broth in a saucepan and bring to a boil.
  8. Pour boiled broths over onions. Taste and season with additional salt and pepper if needed (if not serving immediately, reduce slow cooker to warm and reserve until ready to serve).
  9. About 5-10 minutes before, toast bagutte slices.
  10. Place your oven rack about 6 inches from the top and preheat broiler of your oven
  11. Divide soup evenly into oven safe serving vessels (crocks, mugs, etc). Top each with toast slices, divide shredded swiss cheese among vessels and top each with a slice or two of sliced swiss (enough to slightly overlap the edges of the vessel).
  12. Place the soup under the broiler for 5-7 minutes, or until the cheese is bubbly and slightly browned.
  13. Cool for a couple minutes before serving.
Notes
  1. My onions took 11 hours in the slow cooker to be completely caramelized.
  2. When making for the first time, plan for the full 12 hours of cooking. If onions are finished before the time you wish to serve, you can complete the soup and hold it in the slow cooker on warm until time to serve.
Adapted from Cook's Illustrated Slow Cooker Revolution
Adapted from Cook's Illustrated Slow Cooker Revolution
Hot Momma's Kitchen Chaos http://mommasangelbaby.com/
Now that you’ve seen how easy it is to make – give it a try!  And check out the other AMAZING slow cooker recipes below.

 
Satiating Soups

Scrumptious Mains (Breakfast and Dinner)

Satisfying Sides

Scintillating Sweets

Savory Baking

Sips and Spreads

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22 thoughts on “Amazing Slow Cooker French Onion Soup for #SundaySupper

  1. […] Amazing Slow Cooker French Onion Soup from Hot Momma’s Kitchen Chaos […]

  2. […] Amazing Slow Cooker French Onion Soup from Hot Momma’s Kitchen Chaos […]

  3. I love French Onion Soup! Definitely PINNING this. 🙂

    ~Lorelai
    Life With Lorelai

  4. Never tried this in a crockpot. It sounds so good!

  5. I love French Onion soup, but have never made it in a slow cooker before. I’ve also never made it with beef bones … I’m going to try both. Thanks Cheryl!

  6. French onion soup is one of my favorites! Great recipe and I love that I can make it in the slow cooker….easy breezy! 🙂

  7. French Onion is my absolute fave. But I have never made it at home – I love the idea of slow cooking it!

  8. […] Amazing Slow Cooker French Onion Soup from Hot Momma’s Kitchen Chaos […]

  9. […] Amazing Slow Cooker French Onion Soup from Hot Momma’s Kitchen Chaos […]

  10. We all love french onion soup in this household. I have only made it a few times in the slow cooker. I will have to make it again, YUM!!

  11. I am going to have to share your recipe with my daughter. She loves French Onion soup.

  12. […] Amazing Slow Cooker French Onion Soup from Hot Momma’s Kitchen Chaos […]

  13. […] Amazing Slow Cooker French Onion Soup from Hot Momma’s Kitchen Chaos […]

  14. […] Amazing Slow Cooker French Onion Soup from Hot Momma’s Kitchen Chaos […]

  15. […] Amazing Slow Cooker French Onion Soup from Hot Momma’s Kitchen Chaos […]

  16. […] Amazing Slow Cooker French Onion Soup from Hot Momma’s Kitchen Chaos […]

  17. […] Amazing Slow Cooker French Onion Soup from Hot Momma’s Kitchen Chaos […]

  18. […] Amazing Slow Cooker French Onion Soup from Hot Momma’s Kitchen Chaos […]

  19. […] Amazing Slow Cooker French Onion Soup from Hot Momma’s Kitchen Chaos […]

  20. My family adores French onion soup…and this easy way to caramelize onions is genius!

  21. I’ve never made French onion soup in the crockpot! And thanks for all the links to other recipes. I’m especially interested in the apricot jalapeño pork chops so will be heading over there first. Nice cooking with you for #SS

  22. French onion soup is one of my favorites. It’s nice to see a slow-cooker recipe for it.

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