Take-out Tuesday, Overnight Slow Cooker Caramelized Onions

On Saturday, knowing Sunday was going to be a busy day at the baseball park, I decided it would be a good idea to put dinner together in advance, using the slow cooker…hmmm…what should I make?
I often put slow cooker meals together the day before, refrigerate the slow cooker insert so all I have to do is pop it in the base when I’m ready to start cooking
Onion Soup is a Fall favorite
It calls for simple ingredients that you probably have on hand
I used the hodge podge of onions and shallots I had in the fridge
The base of onion soup is caramelized onions
While this is an easy process, it does take a good 30 minutes or so…
I did a little research and found many recipes for slow cooker caramelized onions
Perfect!
I put the sliced onions into the vessel with
4 Tablespoons of butter and 1-2 Tablespoons bacon grease
{You can substitute olive oil for bacon grease}
Season with salt and pepper and a healthy dash of Worcestershire sauce
Talk about low and slow, slow cooker onions take 14 hours!
I started them in the afternoon, and let them cook all night
In the morning they were golden and creamy
and the house was full of a magical aroma
From there I added the remaining soup ingredients
The soup cooked while we enjoyed Sunday afternoon baseball
A perfect Sunday supper after a chilly afternoon outside
You can make a batch of caramelized onions in advance,
they will keep in the refrigerator for a week to 10 days
Ready for soup day!

Slow Cooker Caramelized Onions
Ingredients
- 3 mixed large onions yellow, white, red, or sweet
- 3 shallots
- 4 Tablespoons butter
- 2 Tablespoons bacon grease or olive oil
- salt & pepper
- 2 Tablespoons Worcestershire sauce
Instructions
- Spray slow cooker with cooking oil spray. Add butter and set to low.
- Slice onions and shallots and add to slow cooker.
- Season well, add Worcestershire, and stir to mix. Cover and cook overnight on low for 14 hours.
Notes
Try these favorite Onion Soup recipes
Click on the recipe title to go to the post and the recipe
Onion Soup with Rosemary Croutons
French Onion Soup with Gruyere and Bacon Croutons
French Onion Soup with Roasted Garlic Beer & Bacon
Slow Cooker French Onion Ravioli Soup
French Onion Soup Bread Casserole
Can you tell I love French Onion Soup???
Enjoy!
🥣🧀🥖
I will be joining these fabulous parties and blogs:
Meal Plan Monday Love Your Creativity What’s for Dinner?
Between Naps on the Porch, Make it Pretty Monday
Turn About Tuesday Celebrate Your Story, You’re the Star
All About Home/ Common Ground Follow the Yellow Brick Home
Tasty Tuesday Oh My Heartsie Girl Full Plate Thursday
Thursday Favorite Things Creatively Crafty Home Matters
Comments
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[…] You can also cook them in your slow cooker here […]
What a great idea! I don’t make onion soup (we both think it’s too messy!) but it would be good to have a huge load of caramelized onions around when I serve bratwurst! Thanks!
Not that caramelized onions are hard to make but I love anything that is set and forget!!
Sure!
What a really great plan for your chilly day at the ballpark (what could be better) than coming home to a delicious onion soup. One of my favorites Jenna, I need to make this soon. And yes, love the way this makes the house smell so good………..
thanks Emily, I didn’t even stay the whole time, it was freezing!! The soup was a life saver!
Sounds nice and easy, I love French Onion Soup:@)
Me too, thanks Lynn!
Walking in the door and smelling dinner already prepared is a winner! I love onion soup, Jenna and this is a must try for a chilly evening!
The best thing about fall is soup in the slow cooker!!
I bet that fragrance of onions caramelizing was amazing! I will give this a try as Onion Soup is a favorite in this house!
It will fill your house with aromas so be prepared!!
There’s nothing like onions cooking!
I remember when my boys were in their teens… and as soon as I started browning onions for something… they both would come into the kitchen and say… “smells good …when’s dinner?”
😊
haha, so true, you can become instantly popular when there is onions, garlic or bacon cooking!
Delicious Jenna! I’ll have to blow the dust off my slow cooker and put it work 🙂
Awesome idea! Your soup sounds amazing!
thanks, it makes it extra easy!
Your soup sounds yummy, Jenna. I love any opportunity to use my slow cooker. They are such a lifesaver! I love soup and make a soup recipe at least once a week during the fall and winter. I may just have to try this recipe. Take care, and enjoy your day!
thanks Shannon, I love to use my slow cooker, nothing better than getting dinner made early in the day!
Caramelized onions are one of my guilty pleasures and whenever I make onion soup, I make twice as many (partly for snacking, partly for other things). Oh, this is really a gem, Jenna. I usually enjoy cooking them stovetop but this is a nice set-it-and-forget-it hint so great for this busy season.
Makes it easy to have a big batch on hand!
What a great idea!! I’ve never thought of this. And I love carmelized onions! Pinning. 🙂
#ohmyheartsiegirllinkup
thank you, so easy!!
You had me at slow cooker! I love using my slow cooker. Sure makes it nice especially on days that I work. Oh nothing like coming home from the ball game to a nice pot of soup Jenna. Hugs and blessings, Cindy
I agree, thanks Cindy!
Oh, I bet this does make your house smell really good!! 😊 What a great idea to carmelize the onions in the crock pot. Thanks for the recipe Jenna! 🧡
Thanks Jill, set and forget is my favorite way to cook!