Easy Slow Cooker Caramelized Onions recipe that is ready in 5 hours. This quick 4 ingredient recipe is the best and will make your mouth water!
Too many onions? Make Caramelized Onions!
These Slow Cooker Caramelized Onions came at a perfect time since we just planted our onion seeds for Spring, and I was able to use the remaining 3 pounds of last years onions for this recipe. It’s always magical when the timing works out perfect and you can go from harvest to seed without much waiting in between.
These onions (and fried onions!) are what dreams are made out of. By slow cooking them we’re bringing out the natural sweetness of the onions as the sugar caramelizes. What starts as a full Crock-Pot of onions is going to turn into a much smaller amount as they melt down.
What you’re left with (besides an amazing smelling house that is going to make your neighbors jealous) is savory, sweet onions that are ready for you to add anywhere – soups, casseroles, sandwiches, salads, pasta, pizza – seriously, you can add them to anything! Just throw them in your mouth already!
The ingredients are simple because this recipe is simple!
- 3 pounds onions – peeled and sliced
- 1/2 cup butter – melted
How To Make Caramelized Onions
This recipe calls for 3 pounds of sliced onions. I use my 6 quart Slow Cooker and the onions take up about 75% of the space when they begin. Peeling and slicing 3 pounds of onions is tough business so if you have sensitive eyes like me I suggest wearing sunglasses while doing this.
- Add all of the ingredients into a large slow cooker and stir so the butter coats the onions.
- Cook on high for 5-6 hours or until the onions are soft. For me this usually takes 5 minutes.
- Serve with your favorite dish or freeze the onions for later. That’s it. Easy, right?
Matthew came home and he started to immediately swoon upon the first smell of these sweet onions. On the first bite, his knees buckled and I had to catch him! People will fall in love with these onions!
Not only do I love the results of this recipe but I love how easy it is to make too! This recipe will be for sure one that will stick around with us for years to come after we pick our garden onions. I hope you give them a taste – I think you’ll be really happy you did!
How many cups of onions does this make once the onions melt down?
Approximately 2-3 cups.
Can I freeze THESE?
Yes! Caramelized Onions freezes amazing! I use my Ball silicone trays or WeeSprout containers to freeze them – this makes it easy to pop one or two cubes out at a time. Alternatively, you could freeze in ice cube trays. Just make sure to pop them out of the ice cube trays if they don’t have lids once frozen and transfer to freezer safe bag.
What are the best onions to caramelize?
Yellow onions tend to be sweeter so they’re best for caramelizing. We grow “candy” yellow onions in the garden which in my opinion have perfect sweetness.
How Can I use Caramelized Onions?
Soups, casseroles, grilled cheese sandwiches, salads, meats, pasta, pizza and more – seriously, you can add them to almost anything!
Pin for later:
Slow Cooker Caramelized OnionsPrint
- 3 pounds onions peeled and sliced
- 1/2 cup melted butter
- 1 teaspoon salt
- 1 teaspoon sugar
- Add everything into a large slow cooker and stir so the butter coats the onions completely.
- Cook on high for 5-6 hours or until they are soft and caramelized. My slow cooker usually takes 5 hours.
- Serve with your favorite dish or freeze for later.